Imagine how boring and monotonous it would be if they played all of their singles together
Literally the same flow again and again and again and again.....
Gaga may, on occasion, draw heavily from the music and iconography of her heroes, but her influence on her own peers is even more obvious: Miley Cyrus and Christina Aguilera practically destroyed their careers trying to copy her; Rihanna and Katy Perry keep getting weirder (see Katy's "E.T." video); Ke$ha is allowed to be famous.
When the video came out everyone was comparing to Britney's IASFU video.
That video is a prime example of a pre-Gaga and post-Gaga effect
Miley was nothing like that before Gaga blew up, suddenly she's doing choreography with weird outlandish outfits