Sia

Someone else almost sang '...Baby One More Time' and 11 other surprising change-ups.

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

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.

Zayn and Sia are taking a cinematic approach for their upcoming single together.

Time to swing from the mistletoe, etc.!

The actress appears in Sia's new 'Free Me' music video, which aims to support the #endHIV Campaign and the Abzyme Research Foundation.

From Kehlani to Charli XCX to Bruno Mars, our house party mix is tailor-made to make sure your next summer shindig is lit.

Sia revealed the toy version of her character in 'My Little Pony: The Movie'.

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

All the best (and worst!) that advertisers have to offer as they fight for all your coins this coming Super Bowl Sunday (Feb. 5).

From Jennifer Lopez to Lady Gaga, these are the most controversial, shocking and outrageous red carpet looks from the Grammys.