Topless Bikini Britney

6/26/2007 11:57 AM PDT

Topless Bikini Britney

It's summertime, y'all, and a girl needs a new swimsuit -- and new boots, and a pair of jeans ... and a top.

The striptastic pop mom dropped into Jill Roberts boutique in Beverly Hills yesterday, stepping out from behind a changing room curtain to ask a question of her assistant. "How do these bikini bottoms look, y'all?"

After the exhausting ordeal of trying on clothes, Brit split for the Four Seasons and a spa treatment.

It ain't easy bein' Britney.