DJ AM and Michelle Trachtenberg end the night together!

There was no doubt in the minds of revelers at Stereo the other night that DJ AM had moved on from his long relationship with Nicole Richie. The disc-spinner invited hottie actress Michelle Trachtenberg - whose credits include "Buffy, the Vampire Slayer" - into the deejay booth where the cozy pair were seen billing and cooing. Trachtenberg, in a sexy red, low-cut top, later fired up the crowd by dirty-dancing with Bijou Philips, but she left in the wee hours with DJ AM.

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