Miley Cyrus puts break-up heartache on ice to perform at pop festival

Miley Cyrus will put her romance split behind her when she takes the stage at the iHeartRadio music festival in Las Vegas this weekend (21Sep13).

A representative for Cyrus confirmed the pop star and actress' engagement to fiance Liam Hemsworth was over on Monday (16Sep13), and now the singer is putting her heartbreak on ice as she prepares to perform in Sin City on Saturday.

The big gig will include her first live performance of new single Wrecking Ball.

Cyrus will join Sir Paul McCartney, Sir Elton John, Justin Timberlake, Katy Perry and Drake among the performers at iHeartRadio, while Britney Spears will serve as a presenter.