Amal Clooney Check Me Out Hollywood My Abs Are Ready For a Close-Up

3/25/2015 7:10 AM PDT

Amal Clooney is on the diva fast track -- based on her latest outfit ... she's going full-court press on the Hollywood glitz thing. 

George Clooney's bride is a quick study in attention-grabbing ... Amal stepped out for dinner in NYC in a midriff-baring ensemble that would have Lady Gaga licking her chops.  

Amal reportedly lunched with Anna Wintour earlier in the day ... so it's possible she's gearing up for a Vogue spread.

Whatever the reason -- the barrister's got a brand new bag.