"Burnin' Up" is the lead single from American pop rock band the Jonas Brothers' third studio album, A Little Bit Longer, and was officially released via Radio Disney on June 19, 2008 as well as other radio stations, and on iTunes on June 20, 2008. In the United Kingdom, it was released as an AA side with "When You Look Me in the Eyes". The single was a hit via digital downloads, and peaked at #5 on the Billboard Hot 100, becoming the group's first top five single in the US and their highest charting song as a group. Featured on Now: The Hits of Summer 2009 features American rapper Big Rob.

The band first performed this song on their When You Look Me in the Eyes Tour as well as at the 2008 Disney Channel Games. Their summer tour, titled the Burnin' Up Tour, is named after this song. The song also features a rap from their bodyguard, Robert "Big Rob" Feggans.

Entertainment Weekly stated that the song "was inspired by Jonas Brothers' unlikely appreciation for the work of babe magnet Prince." Nick Jonas also stated that the song is "about this girl — maybe she's at a party — and you feel that immediate connection [and] both know it's there." The song was also included on Grammy Nominees 2009.

Time critic Josh Tyrangiel named this the sixth best song of 2008.

With strong digital sales, "Burnin' Up" debuted at #5 on the US Billboard Hot 100, making it the band's most successful single, with more than 183,000 downloads and sold the single for the first week it went on sale. It has sold 1.9 million copies in the US.

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