Every seat on the coaster has a "guest interface panel," which is a touchpad that allows them to choose what music they want to listen to during the ride. Their choice is then pumped through individual Polk Audio speaker setups designed to ensure that they hear their own music and not the music of the people around them.
During the ride, 14 cameras will be filming them. There are six on each car and eight along the track. The footage is then edited with the music you're listening to and you're able to take it home with you, for a price of course.
Look for the Hollywood Rip Ride Rockit to open later this spring/summer. [Universal Orlando]