Demi Lovato revealed that she and Fifth Harmony may be making some music together. Demi Lovato revealed that she and Fifth Harmony may be making some music together.

Justin Bieber celebrated his first Christmas as an "officially retiring" singer by, ironically enough, singing. The 19-year-old pop star posted on five acoustic audio clips Dec. 25, calling them a "Christmas present for #beliebers." While the camera stayed focused on the blinds the whole time, the Canadian sang snippets of U Smile, Confident and Swap It Out.

Carrie Underwood's marriage to hockey player Mike Fisher might be struggling, according to a recent report.

Christina Aguilera posted a picture on Twitter Tuesday that teased about her new music. "Working on something special...Happy Holidays to all!!" The Voice coach captioned a shot of herself recording in the studio.