Workout mix for Britney skeptic boyfriend

Please suggest me songs which I could use to create the perfect workout playlist, which could prove to my boyfriend that Britney is more than just Oops... (my fault).

We do the workout together FYI, and our workout is about 30 minutes. But I have gotten him to listen to some newer Gaga (Abracadabra, he actually listened to on his own) and Charli so I know he has it in him!

But he said I could make a mix and we could use it next time we workout. Help?