Sia

The trio we never knew we needed.

This is not her first time on stage.

It's a banger.

The boys were at risk of ageing out of the foster care system.

While some stars were able to recover like a pro, others needed a little help from the audience.

Since 2002, covers have been a fan-favorite staple of Kelly's concerts.

Sia is the latest celeb to come to Scooter Braun's defense.

You may be surprised at the famous faces behind these equally famous songs.

The tracklist will also feature Sade's first new music in almost eight years, plus a score from 'Game of Thrones' composer Ramin Djawadi.

Remember the iconic 'Lady Marmalade' collaboration? Taylor and Miley's 'Fifteen' duet?

The world is recoiling in horror at Sunday night's (October 1) shooting at the Route 91 Harvest Festival in Las Vegas.

Cast your vote for Justin Bieber, Ariana Grande, Sia, Adele or Demi Lovato.