At Justin Bieber's concert and movie filming last night at Madison Square Garden, Miley Cyrus surprised the audience by coming out to sing Justin's song "Overboard" with him. Onlookers couldn't get over the intense chemistry the singers had on stage together.

READ IT: Justin hopes to make a Grease remake with Miley

But what many didn't realize is that Adam Sevani, MIley's LOL costar and rumored new love interest, was also at the show!

People have been saying that Miley and Adam have been flirting on the LOL set and that she dumped Liam Hemsworth for him. But in reality, they have been good friends for a long time (Remember, the Miley and her BFF Mandy Jiroux's M&M Cru dance battle again Adam's ACDC crew?). And on top of that, Adam was just in Step Up 3D which was directed by Jon Chu, who is also directing Justin's 3D movie, so Adam could have just been there to support his friends.

Do you think Miley and Adam are dating? Or just friends?

Photos: Courtesy of ABC; Andy Fossum/Startraks Photo

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