It's been a long time since there was a good music feud, but it looks like two of music's most notorious barb-tossers are at it. Noel Gallagher was quoted this past April as saying Jay-Z was an inappropriate headliner for the Glastonbury Festival because the festival was "built on a tradition of guitar music."

So when Jigga stepped on stage to close the music fest, he had a message for the Mancunian. Amidst boos as video of Gallagher's criticism played on the giant video screens, Hova walked out strapped ... with a guitar, which he used to play a sing-along cover of "Wonderwall." Touche.