Hugh Jackman is still mortified by the moment he peed his pants on stage and has branded the incident his "most embarrassing moment in life."

The Hollywood actor played Gaston in the stage musical based on Disney's hit movie Beauty and the Beast in Australia back in the 1990s, and Jackman is still haunted by his onstage accident.

He tells U.K. Tv host Graham Norton, "It was my most embarrassing moment in life. I was getting these headaches so was told to drink three litres of water a day and me being me, I drank four. I'd just peed, but was waiting backstage and I was like, 'I really need to go again.' But it was my cue, so I walked on stage really needing to go again. That first number was very energetic and I was very exposed in red tights. As I am about to sing the last note I thought, 'If I sing this note I'm peeing my pants but if I don't, I'm going to be humiliated in front of two thousand people'... I was singing and peeing my pants!"

The Graham Norton Show airs in the U.K. on Friday (27Feb15).