Not that you can necessarily tell from these pictures (which are a day or two old, but still irresistably appropriate to this story), but as of yesterday Michelle Trachtenberg's finally old enough to drink - and it looks like that's DJ AM's cue to show up on the scene! We caught the two leaving Urth Caffe around noon yesterday - the pair broke ranks and didn't even share a parting glance after realizing they'd been caught by our cameramen, but Michelle's non-denial denial of our inquiries later that night at Koi make us wonder if she might have had an especially happy twenty-first!