AceShowbiz - The feud between the Kings of Leon and "Glee" creator Ryan Murphy has flared up again after the TV boss branded the rockers "self-centered" for passing up the chance to showcase their songs on the hit show. The band declined producers' request to feature their hit "Use Somebody" in the series, about a group of singing high school students, and Murphy admits he's still sore about the snub.

He tells the Hollywood Reporter, "F**k you, Kings of Leon. They're self-centered a**holes, and they missed the big picture. They missed that a seven-year-old kid can see someone close to their age singing a Kings of Leon song, which will maybe make them want to join a glee club or pick up a musical instrument."

"It's like, OK, hate on arts education. You can make fun of Glee all you want, but at its heart, what we really do is turn kids on to music."

Kings of Leon frontman Caleb Followill has since responded to the rant, insisting the "Glee" war has spiraled out of control. He says, "This whole Glee thing is a shock to us. It's gotten out of hand. At the time of the request, we hadn't even seen the show. It came at the end of that record cycle, and we were over promoting (the song Use Somebody)."

"This was never meant as a slap in the face to Glee or to music education or to fans of the show. We're not sure where the anger is coming from. We just said no to a license for a TV show, which we do a lot."