Justin Bieber Knocked Out By Peter Griffin In New Series Of Family Guy

27 November 2012, 12:37 | Updated: 27 November 2012, 12:49

The 'Boyfriend' singer is confronted by the show's star for "flirting" with his wife in the episode.

Justin Bieber can be seen getting punched by Peter Griffin in a new episode of the popular adult cartoon Family Guy.

The 'As Long As You Love Me' singer is accused of flirting with the character's wife in the episode entitled 'Lois Comes Out of Her Shell'.

"I swear nothing happened, just relax old man," the Canadian says in the episode. Peter quickly responds: "Man, you think you're not going to get old," before attacking the singer.

The appearance in the cartoon comes shortly after Justin was confirmed for an upcoming cameo in a future episode of The Simpsons.

Meanwhile, it's been a difficult week for the teen star who was booed during his halftime show appearance at the Grey Cup in Canada over the weekend and faced criticism for wearing a pair of dungarees when meeting the Canadian Prime Minister.

You can view a picture of Justin and Peter Griffin in Family Guy below: (Picture: Fox Entertainment)

His personal life has also been constantly in the headlines recently after it was rumoured he and girlfriend Selena Gomez have split up.

Meanwhile, Justin is still on the road with his 'Believe' world tour and was joined by The Wanted last night (26th November) in Montreal.