Annalynne McCord and co-star Jessica Lowndes showed off their abs on the set of 90210 on Monday in Venice, and even though the ladies must have been freezing, they were in good spirits!

The hit CW show is currently filming the fifth season, and can you believe that they hit their 100th episode earlier this month? It seems like just yesterday they announced that the classic 90s show was being revived with a hot (but relatively unknown) cast.

And what was newly engaged Shenae Grimes up to? Just uh, showing off her engagement ring for the cameras!

Christina Aguilera, Adam Levine, Blake Shelton and Cee Lo Green paid tribute to the victims of the Newtown school shooting with a special performance of Leonard Cohen's “Hallelujah” last night on The Voice.

Xtina and company were joined by host Carson Daly, Christina Milian, finalists Cassadee Pope, Nicholas David, and Terry McDermott, as well as other former contestants, and they each held a card with the name and age of the twenty children and six adults that were killed in last week's horrific shooting.

The show will crown their season three winner tonight, and The Killers, Bruno Mars, Kelly Clarkson and Rihanna are set to perform.

NBC

Megan Fox is a babe in blue!

The 26-year-old actress showed off her stunning post-baby bod in a Roland Mouret dress while appearing on The Tonight Show with Jay Leno. She had son Noel only two months ago!

Fox tells Leno, "Having an infant is difficult. It's a lot of work and I didn't hire any help because I overestimated my own abilities."

As for eventually hiring some help, Megan added:

"I said to Brian, "we have to get a night nurse or we're going to get a divorce because someone's got to sleep in this house or we're going to kill each other."

We hear ya, Megan!

Rihanna is the proud owner of an 11,000 square-foot mansion in the Pacific Palisades.

The 24-year-old "Umbrella" songstress, whose been promoting her 7th studio album Unapologetic, bought the gorgeous pad for $12 million.

RiRi's digs boasts 7 bedrooms, 9 bathrooms, top range kitchen, dining room with a 14-foot ceiling, media rooms, outdoor BBQ and bar area, swimming pool, a 6,000 square-foot back garden, a sun deck, 4-car garage, a hot tub and stunning panoramic views of the city.

Home sweet MASSIVE home!

They're too cute!

Sandra Bullock and her little man Louis were rocking some similar fashion as the two were sporting some trendy jackets while heading to school in Los Angeles on Monday.

The 48-year-old actress her son just had a fun-filled weekend with Melissa McCarthy as they made another trip to Disneyland on Sunday. You know what they say, a time to work and a time to play!

Three's company!

On Monday, Ben Affleck grabbed his adorable daughter Seraphina while with Jennifer Garner as the trio went out and about in Brentwood.

The happily married acting duo didn't have their other kids Violet and Samuel, so looks like Seraphina got to soak up all the attention!

On Monday, a svelte Kate Bosworth and Michael Polish took some time out of their busy schedules to do some light shopping at Pacific Design Center in Beverly Hills.

The 29-year-old actress and her 42-year-old fiance just finished working together on his film Big Sur, which is set to premiere at the 2013 Sundance Film Festival. They're inseparable in so many ways!

January Jones was a mother on the move on Monday as she took her son Xander to Santa Monica to pay a visit to the pediatrician. Loving the leather jacket!

The 34-year-old actress is always on point with her parenting duties while maintaining a steady career, which she hopes to expound on with the debut of her film Sweetwater at the 2013 Sundance Film Festival.

The period drama, directed Logan Miller and Noah Miller, also stars Elisabeth Moss, Jason Isaacs and Ed Harris. Sounds like this could be a good one!