Has former Beatle Paul McCartney metamorphosized into a little monster? He and his girlfriend (MTA board member) Nancy Shevell were spotted dancing it up at the Lady Gaga show at MSG last night. This was, of course, caught on tape and posted immediately to the YouTubes... and it looks like a more professional crew caught a close-up of the scene (which you'll likely be seeing on HBO in May). Not bad for 68, Sir:

According to the Daily Mail, Michelle Pfeiffer and her husband David E.Kelley were also on hand... two more people we would not expect in Gaga's fanbase.