Chris Brown's Girlfriend Oh, By the Way ... We're Happy Together!

Lost in all the Chris Brown/Rihanna possible reunion madness is the fact that CB has a serious girlfriend -- and sources close to her tell TMZ the two of them are doing quite well in their relationship .... thank you very much!

Sources close to Karrueche Tran tell the press she is unfazed by the recent rash of RiRi rumors. In fact, we're told CB and KT are now actually living together.

As for CB showing up to Rihanna's birthday party, we're told that didn't bother Karrueche either ... because he came home to her that night and whisked her to Miami the next day to celebrate Valentine's Day.

According to our sources, Chris professes his love to Karrueche daily and he has no plans to leave her for Rihanna.

Almost makes you say, "Awwww" ... until you remember ...

COUNDOWN TO 2012 GRAMMYs; Music's Biggest Performer Lineup

From Adele to Joe Walsh, view our handy performer checklist for the 54th Annual GRAMMY Awards

With GRAMMY Weekend approaching, it's time to think about finalizing your to-do list for your official GRAMMY Sunday party. Hors d'oeuvres? Check. Favorite beverage? Check. Something sweet? Check. Internet bill paid so you can stream GRAMMY Live? Check.

What's on the GRAMMY menu, you ask? Plenty.

The eclectic performance lineup for the 54th Annual GRAMMY Awards has a little bit of everything — from a comeback by 2011's best-selling artist, a classic band reunion and duets to genre-stretching collaborations, a Beatle legend, GRAMMY debuts, and hearty sides of country, rock, pop and hip-hop. Plus, the GRAMMYs are guaranteed to be cool with two-time GRAMMY-winning artist/actor LL Cool J serving as host.

It's a lot to keep track of, so we've compiled a handy alphabetical guide listing the artists who will be taking the GRAMMY stage on Music's Biggest Night. Of course, be sure to stay logged on to GRAMMY.com to complement your GRAMMY experience and join the conversation.

And the performers for the 54th GRAMMY Awards are:

• Adele, who will be performing for the first time since undergoing vocal-cord surgery last fall
• Jason Aldean and Kelly Clarkson
• The Beach Boys, who will be reuniting for their first appearance in two decades, with Foster The People and Maroon 5
• Tony Bennett and Carrie Underwood
• Chris Brown
• Glen Campbell with the Band Perry and Blake Shelton
• The Civil Wars
• Coldplay and Rihanna
• Dance/electronica segment featuring Chris Brown, Deadmau5, Foo Fighters, David Guetta, and Lil Wayne
• Foo Fighters
• Alicia Keys and Bonnie Raitt
• Diana Krall
• Bruno Mars
• Paul McCartney
• Nicki Minaj
• Maceo Parker
• Katy Perry
• Bruce Springsteen And The E Street Band
• Taylor Swift
• Joe Walsh

The 54th Annual GRAMMY Awards will take place live on Sunday, Feb. 12 at Staples Center in Los Angeles and will be broadcast in high definition and 5.1 surround sound on the CBS Television Network from 8–11:30 p.m. (ET/PT). The show also will be supported on radio worldwide via Westwood One/Dial Global

MIA confirms appearance with Madonna and Nicki Minaj at Super Bowl halftime show

MIA has confirmed that she will be performing with Madonna and Nicki Minaj at the halftime show at the 2012 Super Bowl in Indianapolis on February 5.

Speaking to Zane Lowe on his BBC Radio 1 show this evening (January 30), the UK rapper and singer said of the iconic American football event's musical interlude: "Yes, I'm going to the Super Bowl… I'm gonna be performing with Madonna and Nicki Minaj... If you're gonna go to the Super Bowl, you might as well go with America's biggest female icons."

MIA and Minaj both feature on Madonna's forthcoming single, 'Give Me All Your Luvin', which is set for release on February 3. It's the first single to be taken from Madonna's forthcoming album, 'MDNA', which is out on March 26 through Interscope Records.
 During the interview, MIA also spoke about her next solo album, saying that she is working on it with "European producers" and that she wants it to be released in the summer. "I want it to be a summer thing", she said, "because it's a summer record."
 MIA's brand new single 'Bad Girls' debuted on BBC Radio 1 today (January 30). It was recorded in Miami with producer Danja, who has also worked with the likes of Madonna and Nelly Furtado. The song's video will be released on February 3.

'Bad Girls' is the first track to be taken from the singer's as yet untitled fourth album. It is MIA's first album for new label Mercury Records after she left XL Recordings at the completion of her contract. MIA's fourth album, which is the follow-up to her 2010 record 'Maya', is rumoured to feature contributions from Swizz Beatz, Cataracs and Chris Brown.

Fat Joe; Chris Brown is the male Beyoncé

Fat Joe has revealed that he considers Chris Brown to be a male "sex symbol".

The rapper, who collaborated with Brown on 'Another Round', admitted that he was impressed by his fellow artist's adoring fanbase during the music video shoot for the track. 

"You know, that guy, he's like the 'guy Beyoncé'," Joe told MTV News.

"This guy takes his shirt off - I played it for a couple of chicks before we released it and they just start goin' crazy and buggin' out like, 'Oh my God, yo'. You know, he's a sex symbol."

Brown was recently banned from doing interviews by his manager, who wants the artist to focus on his music.

Last month, Brown was rumoured to have reunited with ex-girlfriend Rihanna after the pair tweeted 'I love you' just minutes apart.

Rihanna 'won't let go of Chris Brown'

Rihanna has apparently been contacting ex-boyfriend Chris Brown relentlessly in the hope of reuniting.

The 'Talk That Talk' singer has reportedly started calling and texting Brown, even going so far as to spend time with him as he records new music.

"Not only has she initiated a Twitter conversation with Chris for all to see, but she has gone to see him," a source told Life & Style.

"She stopped by his studio recently - twice. She's also calling and texting him a lot. She won't let go."

The insider went on to claim that Brown has not returned Rihanna's advances, adding: "She's trying to break up Chris and his girlfriend, Karrueche [Tran]. Chris is happy, but Rihanna keeps playing her games to make trouble. It's become an issue."

Though she previously insisted that she would never speak to Brown again, Rihanna was recently warned against reuniting with the R&B singer.

She has vowed to "find a man" and quit smoking in 2012.