Lady Gaga's foul mouth has landed her in trouble with broadcasting watchdogs - bosses at MTV have been forced to apologise after one of the singer's tirades was aired in Britain.
The Poker Face hitmaker was on stage at the U.K.'s Isle of MTV music festival last year (09) when she peppered her performance with swear words.
The U.K. broadcast aired on MTV, which went out in the middle of the afternoon, but bosses failed to cut the offensive words and incurred the wrath of executives at Britain's broadcast regulator Ofcom.
Ofcom chiefs have now ruled the TV channel broke broadcasting guidelines by airing the expletives, saying in a statement, "The most offensive language must not be broadcast before the watershed."
