Rihanna

Is So Trendy!

5/6/2009 2:30 AM PDT BY TMZ STAFF
Here's Rihanna at the Metropolitan Museum of Art's Costume Institute Gala in NYC on Monday (left) -- and media loon Bobby Trendy at some event a little while back (right).

0505_rihanna_bobby-1
One of them has a stylist.

We're just sayin'.