Tuned In: Nicki Minaj's Gigantic New Rock Sparks Engagement Rumors

(Bauer Griffin)

Nicki hid behind her ginormous ring last week. (Bauer Griffin) Nicki Minaj has been sporting a heavy-looking chunk of diamond on her manicured left hand, meaning she's either engaged to her ex-fianc Safaree Samuels again or she's just hard up for attention.

Also, Justin Bieber sang for President Obama, Selena Gomez hosted the world's tamest party, and Florence Welch thought Katy Perry's imitation of her was "amazing."

Nicki Minaj might be engaged to her longtime boyfriend Safaree Samuels... this according to the ever-reliable MediaTakeOut.

Last week, Nicki was photographed deflecting the paparazzi flashbulbs with a very major diamond ring on her left ring finger. Sources claim that Samuels presented Minaj with a 10-carat rock worth $1 milliona significant improvement on the 2-carat ring he allegedly purchased for her some time ago.

Samuels, the gentleman who appears to be wearing a pearl necklace in the photo above, is perhaps best known for being the dude who recently lashed out at Cher on Twitter, calling her the B-word. He's also notable for having been involved in a couple of physical altercations in the past few years, including an incident where a suitcase made contact with Nicki's face.

Justin Bieber made it back from Mexico in time to perform at the Christmas in Washington concert at the National Building Museum on Sunday. Bieber, along with Cee Lo Green, Jennifer Hudson and The Band Perry, performed his songs "Mistletoe" and "Away in a Manger" before an audience that included the expertly-dressed First Family. Fans will have to wait 'til Friday to see him rock the President's world.

Edited for "crazy socks" content. Bieber's girlfriend Selena Gomez was not part of the Christmas in Washington festivities, as she was way too busy holding a "Crazy socks party."

Gomez! Living on the edge! Fans of Selena's nutty socks can find them for purchase at Target.

Katy Perry poked fun at a few of her superstar colleagues during her hosting gig on Saturday Night Live, among them Florence Welch of Florence and the Machine. Perry warbled her way through a spoof song called "The Dog Trial Is Over" while outfitted in a flowy, ethereal batwing dress.

Caught backstage at KROQ's Almost Acoustic Christmas, Welch admitted, "I haven't seen it yet! I've seen pictures!"

She seemed a good sport about the whole thing: "I think she looks amazing! I was like, 'Yeah, that's it! You've got the hair, the dress, everything.' ... I've heard she did a really amazing job, and I'm kind of honored."

Major Lazer has a new music video out, and it has pretty much all the elements of something great... meaning there's Diplo, a grandma who looks like she's spent the past 20 years smoking ciggies on t! he porch , and Jian sword dancing (you probably couldn't do it).

Original Sublime drummer Bud Gaugh has called it quits on Sublime with Rome. He told reporters at the KROQ Almost Acoustic Christmas concert in L.A., "The story is that I'm gonna be a dad here again real soon, and I just wanna be there for my family."

Or maybe he just realized that being part of an annoyingly overplayed, overhyped, and overrated band isn't all it's cracked up to be.

It's official: Gwen Stefani's kids are out-dressing their mom. All other Hollywood babies should just give up.

(FlyNet Pictures)

Hilary Duff is still pregnant.

Hillary Duff at the Santa Monica Ice Rink
A pregnant Hillary Duff joins 'Danskin: Move For Change' at the Santa Monica ice ring. Hillary posed with a $10,000 check and the participating children. (Pacific Coast News)more pics Pete Wentz's divorce of Ashlee Simpson has been finalized, so these pictures of him with his new model girlfriend are the opposite of scandalous.
Pete Wentz and Meagan Camper Out in LA
Pete Wentz and his girlfriend Meagan Camper take his adorable son Bronx to the movies at! Univers al City Walk in Los Angeles. The Fallout Boy frontman, who recently finalized his divorce from Ashlee Simpson, reportedly saw a 3D movie with his girlfriend and son. (Pacific Coast News)more pics We're not really sure what Ashley Tisdale is up to these days, but whatever it is doesn't require pants.
Ashley Tisdale Arriving At The Staples CenterActress Ashley Tisdale is pictured arriving at the Staples Center for the Jay Z and Kanye West concert in Los Angeles, CA. (FlynetPictures.com)more pics

See more Nicki Minaj photos: