PHOTOS & VIDEO: Justin Bieber Goes 'Overboard' With Miley Cyrus At The Garden

Sept. 1 2010, Published 3:13 p.m. ET

Justin Bieber-mania hit a fever pitch Tuesday night, as cameras rolled on the teen idol's upcoming 3-D film shooting at New York's famed Madison Square Garden, featuring cameos from stars such as Usher, Ludacris, Sean Kingston, and last but not least, Miley Cyrus.

Bieber Tweeted before the show, "Its all really coming 2gether. Tonight I perform with my heroes! MSG its almost time!"

And come together it did: Bieber, easily the biggest breakout star of 2010, performed a duet of the song Overboard with the 17-year-old Hannah Montana star to the delight of the screaming fans in attendance.

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The 16-year-old Baby, Baby singer told The UK Sun earlier this week he'd be interested in doing a remake of the classic musical Grease, and would like Cyrus to be cast as his love interest.

Bieber's new album, My World 2.0, is in stores now.