Jason Trawick coat jeans glasses Britney Spears taxi

What on earth was Jason Trawick doing in the back of a cab outside of Trousdale late last night? Sure, it could have been a funny angle, but we have to wonder why he's bent over like this with his underwear peeking out...

Anyway, Lance Bass and the Situation also showed up to Brent Bolthouse's West Hollywood hotspot on Tuesday evening, and click after the jump to see who else was there! Hint: we'll see him in a pair of tights on the big screen this summer...