Further evidence that the Harry Potter movies are growing up a little: Performing at Hogwarts’ Yule Ball in Harry Potter and the Goblet of Fire is a Britrock supergroup whose members include Pulp frontman Jarvis Cocker and Radiohead’s Jonny Greenwood and Phil Selway. They have three songs on the soundtrack CD — the prom-worthy ballad ”Magic Works,” the Franz Ferdinand-esque raver ”This Is the Night,” and the hilarious dance-rocker ”Do the Hippogriff” — which you can stream track-by-track at AOL Music. Can’t wait til Harry and friends discover hip-hop.