12:55 pm: Some enterprising Hot 100 Fest-goers got the party started early by setting up a table in the parking lot for a rousing, competitive game of beer pong. Now that's how you tailgate a music fest.
2:01 pm: Only one half of Seeb, the Swedish duo who turned Mike Posner's "I Took a Pill in Ibiza" into a hit with their remix, made it to the festival. But no matter. The audience bounced and jumped their way through the set, which included a slightly different remix of "Ibiza." And then their typical "Ibiza" appeared again at the end, allowing the crowd to take over the lyrics. In the middle of the song, Seeb seamlessly added a few lines of Justin Timberlake's "Can't Stop the Feeling," drawing applause from fans.
Billboard Hot 100 Fest Performance Photos
2:26 pm: "We about to get real lit," opened Atlanta rapper Madeintyo (pronounced "Made In Tokyo," a nod to his time spent living in Japan as a ninth grader) before launching into his set at the W Hotel's Next Up stage. Tyo got the crowd hype with live renditions of his paper-chasing tracks "Haters," "The Check" and "20K." "Last year I was on my couch. This morning, I woke up and said 'I'm about to perform on this Billboard stage,'" he offered before performing his motivational anthem "I Want," which 2 Chainz remixed. The crowd recited every lyric when he set it off with his Hot 100 hit "Uber Everywhere."
Billboard Hot 100 Fest: Ariana, Fetty & More Memorable Moments From Day 1
2:33 pm: Brooke Eden was one of the new country artists at Billboard Hot 100 Fest, and while her hard-charging, fiercely defiant songs touched on country music mainstays -- drinking, lovers who done you wrong and standing up for yourself -- her between-song banter cast her songs in a 21st century light. Talking about going on a break with a boyfriend only to see him posting photos on social media of a new girl within days, Brooke Eden sounded like a fiery country star-in-the-making for the Internet era. While originals about not giving her ex the satisfaction of a crazy rant or refusing to be someone's Saturday night without also being their Sunday morning were highlights, she demonstrated her versatility by covering "Drink You Away" during her set. "Justin Timberlake and Chris Stapleton had a divine intervention at the CMAs," she said of last year's ceremony. "I literally felt like God was speaking out of Chris Stapleton's mouth." God may not have been speaking through her mouth at Hot 100 Fest on this very hot Sunday, but damn, it still sounded heavenly.
3:15 pm: "How many people here have seen Suicide Squad?" asked Skylar Grey a few songs into her set on the main stage at the Billboard Hot 100 Festival on another scorching hot afternoon. As the crowd cheered in response, she and her drummer and DJ launched into "Wreak Havoc," one of her two contributions to the film's successful soundtrack, which is currently atop the Billboard 200 albums chart. (She also co-wrote "Gangsta," performed by Kehlani, for the soundtrack.)
3:45 pm: CID took over the W Hotels stage on Sunday and delivered a vivacious set full of throwbacks like “This Is How We Do It” by Montell Jordan along with popular hip hop songs including “Panda.” The New York rep excitedly shared “Sweet Memories,” his recent collaboration with Kaskade while the crowd shuffled along to the beat on the dusty ground.
4:18 pm: Party Thieves broke into the Star Wars theme at the peak of its set. The producer also worked the theme from Lion King into his set for a turnt, cinematic performance, which included a mix of 90s nostalgia (“Wonderwall”), hip hop (“All I Do Is Win”) and a little of Flux Pavilion’s “I Can’t Stop” blended in.
4:23 pm: The W Hotel's Next Up Stage was like a mini dance fest all its own. Haywyre graced the late afternoon beachside air with a DJ set that showed off his jazz piano skills, as he improvised some keys over his own beats.
4:32 pm: Haywyre took time out for some idol worship. "One of my earliest inspirations in electronic music was Daft Punk. This is a tribute to them." He soared through an intergalactic suite of sounds and accompanying visuals reminiscent of the French duo.
4:58 pm: Major Lazer's own Jillionaire had Hot 100 fest-goers getting low for his high octane set at W Hotel's Next Up stage. The Trinidadian DJ/producer busted out the party starters like Jack U's "Febreze" ("if you know you're the shit, point to yourself," Jillionaire told the crowd), Wiz Khalifa's "We Dem Boyz," Desiigner's "Panda," Calvin Harris' "This Is What You Came For" featuring Rihanna, and Major Lazer's "Lean On" ft. MØ. After playing the Jack Ü and Justin Bieber jam "Where Are Ü Now," Jillionaire proclaimed, "I really wish Justin Bieber would come back to Instagram. Justin, we miss you."
5:05 pm: "Are y'all ready to party with us?!" came the call from singer/DJ duo Timeflies, who kicked of their main stage set with the anthemic "All The Way" before tapping into a nostalgic vibe with Biz Markie's "Just a Friend" that segued into their own "Ride." But the clear highlight of the set came when vocalist Cal Shapiro freestyled over producer Rob Resnick's mashup of the beats from Desiigner's "Panda" and DJ Khaled's "All I Do Is Win." Using prompts up on the screen -- Billboard Hot 100, Yankees, Shake Shack and Summer were the first of several sets of words -- he combined each into subsequent lines in what turned out to be an impressive five-minute freestyle, backing up the hype surrounding their set with an impressive display of skill.
6:12 pm: A few hours before he was scheduled to play the Sun Stage, Marshmello made his way through general admission near that stage. It's hard to stay incognito when there's a giant marshmallow bucket on your head, so naturally dozens of fans and their phones followed him until he made it to the Hot 100 Artist Village, at which point he hung out with Party Thieves backstage for a bit.
6:20 pm: As clouds continued to gather above the Sun Stage, Nashville's Moon Taxi brought some brightness with immediately memorable guitar riffs and soulful, airy vocals. Whether delivering hefty, crunchy guitars, synths or lightly funky material, Moon Taxi had more people dancing than any other rock band at the Hot 100 Fest.
7:11 pm: Christian Karlsson and Linus Eklöw of Galantis delivered a high-energy setlist including original songs “Firebird” “Runaway” and “No Money.” Waving an orange and purple flag while “Peanut Butter Jelly” caused the crowd to sway in unison, the duo transitioned into “Kernkraft 400” by Zombie Nation. The rain intensified along with the beats, which included fan favorites like “Don’t Let Me Down” by The Chainsmokers and surprise addition “Dance with Somebody” by Whitney Houston. They drew the largest crowd of the Sun Stage on Sunday, and kept everyone engaged and jumping. The duo played through the rain and made sure the soaked crowd never felt washed up.
7:45 pm: With the word "Dreamville" emblazoned on the JumboTron, rapper J. Cole reported promptly to the Hot 100 stage at his scheduled time with a trip down his 2014 platinum effort 2014 Forest Hills Drive. His earlier hits, though, like "Can't Get Enough," "Work Out," "Planez," "Crooked Smile" and "Power Trip" riled the crowd into a frenzy.
7:55 pm: With rain spitting down and the sun already in the rear view mirror, Audien -- the DJ name of Connecticut native Nathaniel Rathbun -- cut straight to the chase and delivered easily one of the most fun sets of Sunday's edition of the Billboard Hot 100 Festival. Mixing in a couple current electronic chart hits (like the Chainsmokers' "Need You Now") and dance-flavored versions of big pop cuts (like a turned up rendition of Coldplay's "Adventures of a Lifetime"), the young DJ united a crowd that was more than happy to withstand the weather to party on. The build ups to Above & Beyond's "Sun & Moon" and Zara Larsson's "Never Forget You" also kept the young crowd hyped and the communal vibe intact.
9:30 pm: “Oh shit. Bieber. Bieber,” said an early 30s male attendee as Marshmello’s remix of “Where are U Now” began at the Sun Stage. “The reason I do this is to see you guys do this [rage] and wear Mellogang,” the DJ said enthusiastically before dropping "Panda," "Trap Queen" and "Hello," along with three ID tracks. The mystery artist's supporters stayed throughout the entire performance despite hearing Calvin Harris’s closing set start from the Hot 100 Stage in the background.
10:50 pm: The crowd was there for his biggest hit, "Panda," which Desiigner launched into just after he ripped off his shirt. "I love everybody so much in this motherfucker" he said before jumping into the crowd. He then delivered "Freestyle 4" -- the second of his contributions to Kanye West's The Life of Pablo -- and then "Pt. 2," which was essentially "Panda" again.
10:56 pm: Delivering one hit after another during his headlining Hot 100 Fest set (most of them his own, although he worked in remixed versions of other pop hits like Adele's "Hello"), Calvin Harris had the crowd in the palm of his hand throughout his performance. "This Is What You Came For" was certainly one of the things people came for, but set-closer "Blame" -- complete with a confetti explosion -- elicited just as much of a roar from the crowd.
11:12 pm: After Calvin Harris wrapped and fireworks exploded over Jones Beach, Christian "Bloodshy" Karlsson from Galantis met a fan in a "Britney For President" t-shirt on the Billboard Hot 100 yacht. Why was that so special? Because Karlsson has co-written tons of songs for Ms. Spears, including a little hit you may have heard of… "Toxic."