Avril Lavigne almost exposed her breasts to fans on Wednesday, February 16.

The ‘What the Hell’ hitmaker stunned the audience at London’s Apollo West End cinema when she pulled up her shirt to reveal the tattoo she has on her rib cage which matches that of her boyfriend Brody Jenner.

She said: “What’s been the most what the hell moment? Probably the f**k tattoo on my ribcage…. Do you want to see it?” The 26-year-old star then lifted her top to reveal the inking, but appeared bemused by her own actions.

She asked the crowd at a fan Q&A event: “Wait, is it that small you really can’t see it? Or wait, is that the other one? No, it was the right one.”

Avril and Brody – who also have matching lightning bolt tattoos – stunned onlookers when they requested the rude body art at Mark Mahoney's Shamrock Social Club tattoo parlour in Hollywood last year.

A source said at the time: “They were laughing and said they had not slept in two days. They were completely, utterly out of it.

“Then nobody could believe it when they said they wanted the word f**k written on their ribs.

“Avril didn't even care that the only person available to ink her in the shop was an apprentice. She just said, 'I don't care, do it.'

“Neither of them seemed to stop and think about what they were doing, it was just one big laugh.” - Bang Showbiz