Treat your brain to the visual equivalent of Bubblelicious gum by watching Britney Spears and Iggy Azalea's campy new "Pretty Girls" video. In a send-up of Earth Girls Are Easy, Britney plays an '80s-era Valley Girl who's just, like, hanging out and filing her nails when Iggy Azalea-as-an-alien lands in her pool. Brit Brit promptly gives Iggy a makeover that includes de rigueur crimped and teased hair and the two cruise around in a yellow jeep. Iggy shows off her intentionally terrible robot alien-doing-a-Valley Girl-accent and magic powers and the two hit the club. If it makes no sense that's because it makes no sense. Don't think too hard and just enjoy the welcome return of Britney's A+ dance moves.