LeAnn Rimes partied it up on Cabo San Lucas over the week, rocking a bikini and singing some Mexican folk songs on Vine for all the world to see.

The occasion? Her friend's 40th birthday. "Girls girls girls ... Happy 40th to the hot chick in the middle!!! Love you Lizzy," Rimes wrote last Thursday.

Posted in: LeAnn Rimes

In celebration of LITERALLY the hottest time of year, we're pleased to announce and kick off the 1st Annual THG Bikini Body Summer Showdown!

It's not a complicated setup. Take a look at the two bikini-clad celebrities pitted against each other below. Choose your favorite. The winner advances.

Posted in: Katy Perry