Fans voted to give the Milestone Award to Carrie Underwood. In addition to her two performances, Jennifer Lopez delivered a passionate and emotional speech in accepting the Icon Award. A dozen awards were handed out on air in between 19 musical performances.
The awards show, broadcast on ABC, featured the television world premieres of a Michael Jackson hologram and a Miranda Lambert-Carrie Underwood duet of "Somethin' Bad." Katy Perry popped in remotely from London to perform her hit "Birthday."
Timberlake was named Top Male Artist while Perry -- the Top Hot 100 Artist of 2010 -- received the female honor. Lorde, who performed "Tennis Court" on the telecast, was named Top New Artist and her song "Royals" was crowned Top Rock Song. Awards are based on data tracked between March 11, 2013 and March 9, 2014.
Among genres, Luke Bryan was named Top Country Artist; Eminem, who dominated the 2010 awards, earned Top Rap Artist; Marc Anthony was Top Latin Artist; Chris Tomlin was tops in Christian music; and Timberlake received Top R&B Artist honors.
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After being named Top Streaming Artist, Miley Cyrus performed a trippy rendition of the Beatles' "Lucy in the Sky With Diamonds" with the Flaming Lips' Wayne Coyne and Steven Drozd from Manchester, England. A single of Cyrus performing the song with the Lips comes out ahead of the psych-rock group's tribute to "Sgt. Pepper's Lonely Hearts Club Band," titled "With a Little Help From My Fwends," which will be released Oct. 28.
The program was filled with songs currently high on Billboard's charts. John Legend performed this week's chart topper on the Hot 100, "All of Me"; Iggy Azalea did her two songs from the top 5 - "Fancy" with Charli XCX (No. 3) and a bevy of UNLV cheerleaders, then she assisted Ariana Grande on her "Problem" (No. 5) with an army of open-shirted male dancers.
Jason Derulo performed a medley of his No. 7 hit "Talk Dirty" with 2 Chainz and "Wiggle" with Snoop Dogg. Bryan performed the current Country No. 1 "Play It Again" and joined Florida Georgia Line for the No. 2 song on the country chart, "This is How We Roll," in a pyro-heavy performance. OneRepublic gave "Counting Stars" its send-off -- leader Ryan Tedder told Billboard the song, which peaked at No. 2, is being retired from TV performances.