The Entertainment Buzz Round Up...

Rumored lovebirds Brooklyn Beckham and Chloë Grace Moretz both showed up at the premiere of her new movie If I Stay on Wednesday in Hollywood. The teenage duo opted out of red carpet photographs together, but the 15-year-old son of David and Victoria Beckham was there to support his reported lady love nonetheless.

Brooklyn Beckham Supports Chloë Grace Moretz by Attending Her If I Stay Movie Premiere '€”Watch Now! | E! Online

Nick Cannon confirmed to The Insider on Thursday that he and Mariah Carey are indeed having issues. "There is trouble in paradise," Cannon admitted. "We have been living in separate houses for a few months."

Nick Cannon: Mariah Carey and I Have Been Living Separately for Months - Us Weekly
Justin Bieber took to Instagram on Wednesday night to share a video of himself shaving off his mustache. In the footage, the 20-year-old pop star can be seen holding a razor and asking, "Should I do it?" He then offers a zoomed-in shot of his unimpressive facial hair and whispers to the camera, "R.I.P. 'stache."

Justin Bieber Shaves Mustache, Says "R.I.P. 'Stache": Watch Video - Us Weekly
Taylor Swift and John Mayer were spotted at Los Angeles hot spot Chateau Marmont at the exact same time on Wednesday night. The exes, who have both written post-breakup songs about each other, arrived separately. Both left around midnight, but in different vehicles. And while it does seem a little too coincidental, Swift's rep was quick to dismiss that anything is happening between the two.

Taylor Swift and John Mayer Seen at Chateau Marmont'€”Did They Cross Paths? Get the Scoop! | E! Online

Actors Kristen Stewart and Nicholas Hoult put a new spin on the ALS Ice Bucket Challenge by honoring the California water conservation mandate and using dirty bath water.

Kristen Stewart, Nicholas Hoult Do ALS Challenge With Dirty Bath Water - Us Weekly