Plus, Sia & Jason Derulo perform on The X Factor UK, Chris Brown premieres a new “Royalty” single and more.


Katy Perry lent her likeness to UNICEF in an effort to raise awareness to global climate change.

In the one-minute clip, Perry, UNICEF Goodwill Ambassador’s latest representative, plays a weather girl and discusses the aggravation our planet endures, like the drought in California, the floods in Bangladesh or the extreme storms seen throughout the Philippines, due to the peoples’ footprint.

She calls attention to the children that suffer and die as a result of these catastrophic changes with an endearing public service announcement. Watch below:

Sia performed “Alive” on The X Factor UK on Sunday:

Jason Derulo performed “Want To Want Me” on The X Factor UK on Sunday:

■ Details surrounding Rihanna’s upcoming film, Valerian, are slowly surfacing and it sounds like this film is gonna have one kick *** cast. Director Luc Besson recently revealed on Instagram that the film will also star Ethan Hawke. He joins Cara Delevigne, Dane DeHann, Clive Owen and, of course, the pop titan. Other reports claim there’s a massive $180 million budget. What’s ANTi?

Ethan Hawke will play in #Valerian! I want to work with for years! We gonna have fun!!!

A photo posted by @lucbesson on

Chris Brown premiered “U Did It” off his forthcoming record Royalty:

Sleigh Bells dropped “Champions of Unrestricted Beauty:”

■ Watch KStewart’s acoustic version of “Ain’t Nobody:”

■ Lifetime is continuing their trend of buzzworthy biopics with the still alive and kicking R&B diva Toni Braxton, and the network just released the very first look from the film. Thankfully, this project should appease fans, considering the singer/reality star is executive producing the the flick, which will premiere on January 23 at 8 p.m. EST.

Did we leave anything out?