Oasis guitarist Gem Archer has accused Jay-Z of acting like a schoolgirl after the US rapper released a song which berates his bandmate Noel Gallagher.
In the song, entitled 'Jockin' Jay-Z', the rapper refers to his well publicised appearance at last summer's Glastonbury Festival, which Gallagher said was “wrong” for the event.
He raps: "That bloke from Oasis said I couldn't play guitar/Somebody should have told him I'm a fuckin' rock star."
The track, from Jay-Z's forthcoming 'Blueprint 3' album, emerged just days after the rapper said he wasn't bothered about Gallagher's remarks.
Now, speaking to the Sun newspaper, Archer has told Jay-Z to grow up.
“It’s like eight-year-old girls in a schoolyard, running off and writing ditties like that,” he said.
“But rappers love a ruck. It’s what they do. They set out to have a fight and it’s there in their lyrics. They love biffo.”
You can see pictures from Jay-Z's performance at Glastonbury below, or click the following links for our full coverage.