So many celebrity news stories, so little time! Thanks to a few of our fellow entertainment BFFs, Hollywire has rounded up some of our favorite and most-talked about news stories of the day! Mariah Carey releases “#Beautiful,” Demi Lovato opens up about post-rehab stuggles and a style profile on Carey Mulligan!

Mariah Carey on Monday released her latest single, "#Beautiful," (yep, that hashtag was intentional, ugh), which marks a solid improvement from that song she sang for that Oz movie back in March [Celebuzz]

One Direction’s Liam Payne called it quits – again – with long-time girlfriend Danielle Peazer. But why? And what do you think about it? [Teen]

Beyoncé sang "Irreplaceable" at London’s O2 Arena on Saturday (May 4), 1-year-old daughter Blue Ivy appeared briefly on stage, sporting a white dress and large protective headphones [CelebrityBabyScoop]

Demi Lovato is chatting more about her struggles with addiction, eating disorders, self harm and bipolar disorder [Popcrush]

Nina Dobrev of The Vampire Diaries fame joins New Girl‘s Jake Johnson and Damon Wayans Jr. in Let’s Be Cops, a new comedy movie directed by Luke Greenfield [Hypable]

With all the success of Iron Man 3 last weekend, it’s obvious that a number 4 will be happening, but will Robert Downey Jr. be a part of it? [NextMovie]

With the release of The Great Gatsby coming to us this weekend, Buzznet is profiling Carey Mulligan and her fantastic style [Buzznet]

Breaking up is rarely fun for anyone involved, but there are some general rules to follow to keep it from being a totally traumatizing experience. However, our friends in movies and television haven’t always listened to the wise advice that Gurl can dish out. [Gurl]

Photo series of celebrities blowing bubblegum. Does it really get much better? [TheBerry]