Brit Brit's never looked better!

Britney Spears was glowing with boyfriend Charlie Ebersol on her arm at last night's Billboard Music Awards, and the singer must have been excited for her man to see her take the stage with Iggy Azalea to perform their single "Pretty Girls."

The Australian rapper and the pop princess killed their first ever live performance of their catchy tune, and looked mighty sexy doing it! The Southern songstress wore a sheer bodysuit with thigh high boots, while the "Fancy" chart topper donned a galactic-inspired ensemble. As for whether the ladies were lip synching, we aren't totally sure, but we could care less because we were mesmerized by the dance moves!

These two are taking over the music world!