6:15 pm -- Sara Bareilles is the first major artist to walk the red carpet at the MusiCares 2014 Person Of The Year tribute. She's waving at the press. Soulful singer Miguel, sporting a beard, does the same. But he stops by to say "hello" to the Billboard crew.
7:00 pm -- At MusiCares: Grammy-winning songwriter Dan Wilson bonded with JD Southern over their love of jazz at Thursday night's "A Song Is Born" event. Turns out Southern has enlisted Herbie Hancock and Wayne Shorter for his next album. Wilson's next solo album comes in April.
7:10 pm -- When James Taylor met Steven Tyler on the red carpet.
7:13 pm -- David Crosby walks into the MusiCares cocktail party, smiling broadly.
7:15 pm -- Gloria Estefan tells Billboard that Carole King has personally inspired her career. Estefan's new musical has found a director, she says, but details to come soon. Estefan, who has performed King covers previously, counts the honored songstress as one of the best in the business.
7:20 pm -- Lady Gaga has arrived at the red carpet. Press is going wild as she makes her way through, blond hair and a fierce white fitted dress.
7:25 pm -- Gaga and Yoko Ono embrace on the red carpet. Light bulbs flash everywhere.
7:27 pm -- Ozzy and Sharon Osbourne arrive. She smells like roses. He's having fun with the press.
7:45 pm -- Inside CAA parking garage for BET's Music Matters showcase. Directed here because valet is full.
7:46 pm --- Vibe editor-in-chief Jermaine Hall tells Billboard they wanted a rapper to honor at this year's Impact Awards. Nas' award commemorates the 20th anniversary of his 1994 "Illmatic" debut. Hall says Vibe is focused more on its online presence for 2014.
7:53 pm -- BET's showcase kicks off with Raphael Saadiq protege Adrian Marcel. Showcase co-host is artist/producer/songwriter Rico Love.
8.00 pm -- MusiCares: Film producer Brian Grazer flew to L.A. today from Jackson, Miss., where he's filming the James Brown biopic. They have another day of shooting in Natchez to go.
8:06 pm -- J.Cole plus record label vets Mark Pitts and Faith Newman are on-hand to support Nas at Vibe's Impact Awards.
8:25 pm -- Nas tells Billboard being honored at the Impact Awards "means people like you." He says 2014 will be a "special year".
8:30 pm -- Swiss Beatz and Busta Rhymes arrive for the Impact Awards.
8:40 pm -- MusiCares: Miranda Lambert and Blake Shelton are seated near a table that includes LeAnn Rimes and Kacey Musgraves, the latter of whom is about to kick off the tribute to Carole King with Miguel.
8:45 pm -- MusiCares: Zac Brown outbids the likes of Sony/ATV chairman Martin Bandier for a special edition package from luxury vehicle brand Acura -- to the tune of a $70,000 donation to MusiCares.
8:50 pm -- Music veteran Andre Harrell, founder of Uptown and Harrell Records, arrives at the Impact Awards. The show hasn't started yet.
8:55 pm -- Singer/songwriter/producer Raphael Saadiq (left) chillin' at the BET party with his artist Adrian Marcel.
8:58 pm -- BET stage being set for current Grammy nominee Mack Wilds, protege of fellow nominee and Sony exec Salaam Remi.
9:00 pm -- Just heard a rumor that Stevie Wonder may play when the night's final BET act -- and current Grammy nominee -- PJ Morton performs.
9:08 pm -- Vibe's Jermaine Hall kicks off the Impact Awards, which he says he created to honor legends "in their moment" rather than too late in their career.
9:10 pm -- MusiCares: Steven Tyler and LeAnn Rimes start the evening with "Hi-De-Ho," best known as a minor hit for Blood, Sweat & Tears.
9:12 pm -- Impact Awards: Veteran hip-hop exec Faith Newman discusses signing Nas to his first deal. Says she always knew he was "a genius."
9:15 pm -- MusiCares: Pink takes on "So Far Away" from Carole King's legendary 1971 album "Tapestry." She performs with just piano.
9:20 pm -- Train follows with the first track on side one of "Tapestry" -- "I Feel The Earth Move." Unlike Pink, Train's version duplicates Carole King's chart-topping recording.
9:25 pm -- Sevyn Streeter (right) with manager Tina Davis chillin' at BET Music Matters.
9:26 pm -- BET: Mack Wilds says a year ago he was in hospital and that what's happening now with his music career and first Grammy nod is "so surreal."
9:28 pm -- J. Cole takes the Impact Awards podium. Says he's here as a Nas fan, not as the artist J. Cole. "I had to put on a suit for this!" He's been listening to Nas' music since the age of nine. He says of Nas, "I was rooting for you like my favorite wrestler."
9:30 pm -- MusiCares: Lady Gaga takes to a second stage in the center of the L.A. Convention Center to deliver a solo version of "You've Got A Friend." Gaga says she used to play the song at an an excessive volume in her father's man cave.
9:40 pm -- Impact Awards: Swizz Beats says he named his son after Nas so that he could "look at greatness every day." Called Nas his "brother," gave him his chain.
9:45 pm -- MusiCares: Will.i.am brings out Leah McFall, a 25-year-old British singer to duet on "Love Makes the World." Will.i.am says of Carole King, "you wrote songs that changed the world." They segue into the Black Eyed Peas' "Where is the Love?"
9:49 pm -- Impact Awards: Nas speaks, thanks everyone, points-out his daughter.
9:50 pm -- Bizarre moment at MusiCares when footage of last year's Bruce Springsteen tribute rolls-out on the big screen. It's been going on a while. People involved in the Academy are no-doubt receiving "WTF" emails.
9:53 pm -- PJ Morton onstage now at BET, without Stevie Wonder. PJ's rocking the rooftop nonetheless.
9:55 pm -- Impact Awards: Steve Stoute, founder/CEO of Translation, describes Nas as "inspiring." Says Nas never cared about money of fame, but cared about "making good music."
10:00 pm -- MusiCares: A day after the women from "20 Feet From Stardom" appear at the Billboard Power 100 party, four of them serenade Carole King. Merry Clayton, Darlene Love, Judith hill and Lisa Fischer are in the house to sing "Way Over Yonder."
10:04 pm -- Impact Awards ceremony ends. Afterparty starts.
10:10 pm -- One of the quirkiest pairings of the MusiCares event: Kacey Musgrave and Miguel turn in a magical version of a song Carole King wrote with Howard Greenfield for the Everly Brothers, "Crying in the Rain." Alicia Keys follows with a ballsy version of "(You Make Me Feel Like) A Natural Woman."
10:15 pm -- Disney star Zendaya Coleman arrives at the Friends N Family party.
10:19 pm -- BET's Music Matters comes to a close. Popular destinations for most from here: Beats party, Vibe aftershow and Friends N Family.
10:35 pm -- MusiCares: Miranda Lambert, Jennifer Nettles and Martina McBride sing Carole King's early rock 'n roll hits for the likes of the Chiffon and Herman's Hermits. Dancers are told to sit down and return to their seats. What is this? Footloose?
10:45 pm -- Friends N Family party founder Mark Beaven tells Billboard that there's no other Grammy party where artists and execs get to "see all of their friends."
10:50 pm -- Cash Money Co-CEO and Billboard Power 100 entrant Ronald “Slim” Williams arrives with posse at the Republic party. He’s gone straight to the VIP room, upstairs at Rock & Reilly's.
11:00 pm -- Season 5 "The Voice" winner Tessanne Chin is getting bombarded by Republic party-goers who want to take pictures with her. She's taking it like the "champ" she is.
10:55 pm -- MusiCares: Prior to singing, Carole King pays tribute to the people who made her career. Gerry Goffin, Don Kirshner, Lou Adler, James Taylor.
11:15 pm -- Carole King hits the emotional highlight of the night with a ballad rendition of "Will You Still Love Me Tomorrow" with James Taylor singing harmony. Gerry Goffin and King co-wrote the song, which was originally recorded by The Shirelles.
11:20 pm -- Mercury Records president David Massey says Friends N Family stands out from other parties because it's "all inclusive."
11:25 pm -- All the performers shut it down at MusiCares with a reprise of "I Feel the Earth Move," a No. 1 for King back in 1971.
11:30 pm -- Lava president and funnyman Jason Flom arrives at the Republic pre-Grammy party, and begins making the rounds through the thickening crowd.
11:40 pm -- ASTR have just started playing 300 Entertainment's Absolut Elyx Party. He's wearing a Loverboy shirt. She's bringing a lot of energy to this small club room. They open the set with "We Fall Down".
11:45 pm -- The Beats Music launch party at the Belasco is already at capacity as MusiCares wraps up blocks away. Hollywood producer Brian Grazer, one of the few bold-faced names not listed as a host on tonight's invitation, is even trying in vain to get a few of his guests in. Glassnote's Daniel Glass also chatting up friends stuck on the other side of the velvet rope.
11:48 pm -- Youngblood Hawke singer Sam Martin, wearing a colorful sequins backpack, and some companions pop out of a car and linger at the entrance of the Republic party. The doorman lets Martin into the party and two minutes later he returns with a few wristbands for his friends.
12:00 am -- T.I. introduces show performer Iggy Azalea at Friends N Family party. Iggy performs a handful of songs including her single "Work."
12:15 Tommy Boy CEO & founder Tom Silverman just showed up to the 300 Entertainment party. "It's an amazing thing because I know how hard it is… She knows exactly what she wants." he said of his daughter Zoe's recent success and group ASTR signing with 300. "I always told her not to do it unless she was going to do it 120%. I wasn't one of those parents who pushed her into it, I was the opposite. She had to be serious… She got here on her own. I got her back, that's about it."
12:28 am -- "Yeah, the list is closed at this point. It's like showing up to the Grammys late." That's the line from the doorman at the Beats Music party. Nine Inch Nails' Trent Reznor, Atlantic's Julie Greenwald, Interscope's Steve Berman and WME's Marc Geiger are among the execs and artists peeling out.
12:30 am -- 300 Entertainment: Rita Ora rolls past the photographers, saying she didn't want to be snapped, complaining of her hair.
12:37 am -- Iggy Azalea's performance is done. The Australian rapper calls L.A. her "second home" (her "first home" is a town named Mullumbimby).
12:45 am -- Hodgy Beats of Odd Future is here at the 300 Entertainment party. He's ordering a cocktail at the bar.
1:15 am -- Word is Daft Punk is in the house. But they're out of costume, so no one will know or notice.