Dermot O’Leary was forced to apologise on the X Factor last night.1giftyAn X Factor contestant dropped the f-bomb on live TV – and viewers were not impressed. Gifty Louise accidentally swore before the watershed as the singing hopefuls waited to hear if they had made it through to next week’s show.

The 20-year-old – who is mentored by Simon Cowell – was overcome with emotion as Leary called out Sam Lavery’s name first, and in a moment of celebration she shouted: “I f****** told you.”

Leary returned after the advert break to apologise for the bad language and told viewers: “We apologise for the inappropriate language. As you can imagine emotions are running high.”

Viewers were quick to pick up on the word with some slamming the use of offensive language on a “family show”. Twitter user “bazzy” tweeted: “swearing on #xfactor!!! disgraceful”