Rockers Guns N' Roses have forced fans to take sides in the feud between frontman Axl Rose and former bandmember Slash - by allegedly banning concert-goers from wearing t-shirts featuring the legendary guitarist.

The top hat-toting musician famously quit the band in 1993, after his relationship with the singer deteriorated. They never patched up their friendship and their ongoing war of words continues to rage, with Rose recently accusing his former pal of lying about the rift in his 2007 autobiography.

And now TMZ.com is reporting that the band upset Slash fans at their gig in Canada last Wednesday by asking them to turn their t-shirts inside out and leave their top hats outside.

The website alleges an unnamed security guard at the show claimed the order to ban Slash memorabilia came from one of the band's producers.

(This news article provided by World Entertainment News Network)