Mjsbigblog — Green Day front man Billie Joe Armstrong will be joining Team Christina Aguilera as mentor, according to the San Francisco Chronicle. more info

ContactMusic — Billie Joe Armstrong has had a lot of fun filming with Christina Aguilera on The Voice The Green Day frontman has signed on to be a guest mentor to Christinas chosen acts on the TV talent show and enjoyed his first days on set filming... more info

Perez Hilton — Uh-Oh! Hope everything's okay, Xtina… Christina Aguilera was seen leaving a Sherman Oaks doctor's office Tuesday. Blondie was hangin' low with her fedora and boy-toy Matthew Rutler. We bet she was just visiting after passing out from all that ex... more info

Guardian Music — Singer is first confirmed judge on US TV series since the departure of Jennifer Lopez and Aerosmith's Steven TylerMariah Carey has joined the forthcoming season of American Idol. The 42-year-old singer, who has sold more than 100m albums worldwide, i... more info

ContactMusic — Christina Aguilera is working on a dance music comeback track The Genie in a Bottle singer is preparing to make her comeback in August with a song produced by Max Martin who has previously written hits for Britney Spears Kelly Clarkson and Katy... more info

Guardian Music — Superimposing a swastika on the face of Marine Le Pen is just the latest in long line of provocative stuntsMadonna is a lot of things: hit-maker, feminist icon, force of nature. But she is also a political commentator par excellence, as demonstrated ... more info

People.com — Plus: More star sightings! more info

Starpulse — Many stars celebrated Independence Day by going to the beach and attending parades yesterday. Christina Aguilera was in Malibu with her boyfriend Matthew Rutler and her son Max. The singer wore a ... more info

411 Mania — New album may follow... more info

Pop Crunch — Could it be? Could we really be in for new music from Xtina? Rumor has it that Christina is not only planning the release of a fall single but that [...] more info