Justin Bieber and Madonna appear on the Ellen Degeneres show – watch

Pair play 'Never Have I Ever' on US chat show

Justin Bieber and Madonna have spilled some of their darkest secrets by playing the game ‘Never Have I Ever’ on the Ellen Degeneres show.

The pair were probed about phone sex, dating siblings and hooking up in bathrooms. You can watch footage of the duo below.

Bieber admitted to using someone’s toothbrush without telling them, while Madonna confessed to forgetting the name of someone she’d been “fooling around” with.

Bieber recently appeared on Comedy Central Roast where a host of stars including Snoop Dogg, Ludacris and Will Ferrell lined up to take pot shots at the singer.

Following his roasting, Bieber apologised for his behaviour.

He said: “I’ve turned a lot of people off in the last few years. But I know I can still put out good music and turn everything all around. There was really no preparing me for this life. I was thrown into this at 12-years-old.”

Bieber added: “There were moments I am proud of. And there are moments I am disappointed with myself for. But the things I have done don’t define who I am.

“I am a kind-hearted person who loves people. And through it all, I have lost some of my best qualities. For that, I’m sorry. I am looking forward to being someone you can all be proud of.”

Despite his apology, hours later the actor was reportedly embroiled in a “punch-up” with actor David Arquette.

The show is due to air in the United States on March 30.