Medleys, a member of The Police and a motorcycle-shaped piano! That's how it went when Lady Gaga performed at the iHeart Radio Festival in Las Vegas over the weekend.

She soared through a medley of 'The Fame' hits like 'Alejandro,' "Telephone' and 'Paparazzi,' so she certainly cycled through her "classics," even if it wasn't always the full version of the song! She rocked super long blond hair and black bra-top with capped, bedazzled sleeves and high-waisted bikini bottoms, so it was an update of her usual on-stage, black bikini uniform. She also wore knee-high lace up boots to complete her sexy look.

Gaga was joined by Sting for a cover of 'Stand by Me.' The Mother Monster called the singer "one of my very favorite people in the whole world. When I started in this business, [I met] amazing, incredible musicians, legends but they are not always very nice. But Sting was one of the most kind and loving people I've ever met." She looked up at him lovingly at him while she spoke exultingly. They performed together before, so this was an encore performance.

Sting stood next to Gaga while she played a piano shaped like a motorcycle! So it literally was a "stand by me" moment. They certainly jazzed up the song and it was quite the duet.

When she performed 'The Edge of Glory,' she was rocking a skirt and the set up was very glitzy, with big neon sign type letters that spelled out "SEX" fully visible, more so here than during the other clips! Her chest was painted red, to represent some sort of blood splatter, which was also a reprise for her. It just proves that Gaga always bleeds for her art!

It was more theatrically beautiful onstage Gaga drama!

Watch Lady Gaga Perform 'Alejandro,' 'Telephone,' and 'Paparazzi'

Watch Lady Gaga Perform 'Stand By Me' With Sting

Watch Lady Gaga Perform 'The Edge of Glory'