I was watching MTV Diary:Britney Spears this weekend and low and behold, she was working out to The Hits Disc 2. You could hear Kiss playing in the background, as well as a couple of other songs I don't remember.

[I heard some MJ played in there, no Prince... but only saw part of the show -Ben]

[RAZE also sent in...]
I was watching The diary Of Britney Spears on MTV this weekend and there was a scene of her working out with her trainer. In the backround prince was playing. The clip showed her running on the treadmill to "kiss" and making kissy noises like we all do with her lips. Another song I heard in the backround was "I wanna be your lover", I guess they were listening to a best of cd??