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Jessie J Is Burnin' Up At The 2014 NewNowNext Awards: Watch

And don't miss Lance Bass' surprise cameo during Betty Who's set.

The 2014 NewNowNext Awards, which aired Sunday (Dec. 7), were more than just an hourlong salute to man candy -- although it was definitely that as well. Logo TV's annual celebration of the year's hottest new entertainers also featured some must-see musical performances.

Along with NewNowNext Forever Award honoree Kristin Chenoweth, who brought the Broadway with a rendition of "Maybe This Time" from "Cabaret," Jessie J and Best New Musician (Female) winner Betty Who repped the pop scene properly at Miami Beach's Surfcomber Hotel. Check out their performances below.

You caught Jessie J's "Burnin' Up" performance last night.

But, you didn't see her solo rendition of summer jam "Bang Bang."

Or her latest Sweet Talker single, "Masterpiece."

The synchronized swimmers during Betty Who's "Somebody Loves You"/"All Of You" performance were pretty impressive.

But, they didn't hold a candle to lifetime *NSYNC member Lance Bass, who crashed the stage during Who's "High Society" performance.