adamlevinevegas011612pic1.jpgadamlevinevegas011612pic2.j.jpgDenise Truscello, WireImage

Adam Levine was looking oh-so-dapper while presenting at last night's Golden Globes, but the Maroon 5 singer kept it simple in a white tee shirt and jeans at his Las Vegas performance Saturday at The Mirage's 1 Oak. We prefer him this way!

The Voice mentor hit the stage to perform "Moves Like Jagger" and "Stereo Hearts." We're told girls rushed the stage hoping to touch the tatted up hottie, but they had no luck.

After rocking the mic, Levine then hit the VIP lounge with some buddies. Where was his model girlfriend Anne Vyalitsina? Perhaps the Victoria's Secret beauty was waiting back at the hotel in some sexy lingerie.

Jackpot!