Elton John has taken another swipe at his pop rival Madonna by urging her to "lip sync good" at the Super Bowl this weekend during a TV interview.

The Rocket Man has poked fun at the Material Girl's stageshow in the past and he's put the pressure on her to sing live during the much-anticipated half-time show on Sunday.

Asked if he'll be tuning in to watch the spectacle, Elton told Good Morning America on Monday, "Super Bowl is always an event, no matter where you are in the world. It's a great American occasion... I scream at the television."

And asked if he has any advice for Madonna, he added, "Make sure you lip-sync good. Of course you have to play live but I don't think you can."

And he insists he'll never perform on U.S. sport's grand stage, stating, "In all fairness to everyone who's done it before... I've never seen a decent one (performance)."