When I first saw the PopCrush headline, I thought it was going to be one of those silly triped up pieces about an imagined likeness between songs/videos. (I'm sorry, I still don't see the similarity between Madonna's Express Yourself and Gaga, but that's neither here nor there.) I think it's safe to say we're all familiar with the song California Gurls by Katy Perry and Snoop Dogg. You probably know Cascada, too. Cascada is responsible for Everytime We Touch and Evacuate the Dance Floor. Cascada also has a new song out called San Francisco... while I don't think the videos are that much the same, the theme and beat of the songs are similar. What do you think? Watch the videos below and tell us what you think! Read the PopCrush article here.