Paris Hilton knows how to throw a beach bash, that's for sure!

The heiress hit Malibu for the holiday weekend and hosted her annual Fourth of July party with friends like Christina Milian attending.

We already knew Paris looks amazing in a bathing suit, but what we didn't know is that Christina does too ... AND that her daughter Violet is the cutest thing ever!

Check out her poses! This girl knows how to vamp it up for the camera!