If Taylor Swift made one thing abundantly clear in her performance at the 55th Annual Grammy Awards, it's this: she is never, ever getting back together with Harry Styles. Like ever.

Taylor made a blatant diss towards her most recent ex-boyfriend during the performance of the hit song when she said, "So he calls me up and he's like, 'I still love you,'" in a British accent. To dig the knife in Harry's heart just a little deeper, she continues, "And I'm like, 'I'm sorry, I'm busy opening up the Grammys!'" HA!

Justin Timberlake and Britney Spears were once one of the most beloved Hollywood couples in all the land, and now... he's calling her a bitch?

Well, that's what was assumed during Justin's DirecTV Super Bowl Concert, when he introduced his Britney-inspired hit "Cry Me A River" by saying, "Sometimes in life you think you found the one, but then one day you find out that she is just some bitch."

After getting a lot of flack for the comment, the former 'NSYNC-er cleared the air himself -- find out what he has to say about it after the jump!

Hey, guess what, Justin Bieber... you're not the only one who can have some fun in the studio!

Selena Gomez's ex has spent the last several weeks teasing his new album Believe: Acoustic, which contains break up songs about her, by posting countdowns on Twitter and sharing images from the album's recording sessions. Now that the album has been released, though, it's Selena's turn for her musical breakup revenge... and she's getting it by showing off her own studio fun.