One Direction hunk Harry Styles has reportedly jetted off to Arizona to celebrate his 21st birthday at Sunday's (01Feb15) Super Bowl game.

The British pop star is said to be a huge fan of American football and is pleased he can ring in his landmark day at the huge sporting spectacle, which will see the Seattle Seahawks and the New England Patriots compete.

A source tells Britain's Daily Mirror newspaper, "He couldn't have planned his birthday better. He's over the moon to be spending his special day at such a huge event. It was a no-brainer that this is where he was going to be for his 21st. Harry can't wait to experience the atmosphere the day has to offer. It's going to be huge."

He'll also enjoy Katy Perry's half-time show - the pop superstar is scheduled to perform alongside rocker Lenny Kravitz and Missy Elliott as part of the big gig.