Complex sentence: Miley and Lilly dress up as male rockers "Milo" and "Otis," go back to the recording studios, and play their own version of "We Got the Party" in front of the Jonas Brothers.
Split into simpler sentences: Miley and Lilly dress up as male rockers "Milo" and "Otis" and go to the studios. They play their own version of "We Got the Party" in front of the Jonas Brothers.