Hint: She hardly ever takes a day off from the gym, and she once spent $3,000 on pillows. Click thru to see who it is!

Mario Lopez and baby mama Courtney Mazza are engaged!

The Extra host proposed during the couple's New Year's getaway in Ixtapa, Mexico, and he told Us Weekly, "We took a walk alone as the sun was setting. I told Courtney that I wanted the mother of my children to have their last name. She was silent at first from shock, then she leaped for joy and did a little jete!" Awww!

Lopez and Mazza have been together since 2008, and in September 2010 they welcomed daughter Gia. So when's the wedding? Lopez revealed that the duo plan to tie the knot in Mexico later this year.

Lily Allen has kept the name of her newborn daughter under wraps for five weeks, but her mom, Allison, has let the cat out of the bag. Lily's mom reportedly posted the name of her granddaughter on Facebook. Yikes!

The 26-year-old "Smile" singer has named her first child Ethel Mary, according to British reports.

Allen and her hubby Sam Cooper welcomed baby Ethel on November 25. Lily Tweeted:

"Thank you for all the flowers and lovely messages everybody," she wrote. "Very touching indeed."

Prior to delivering Ethel, Allen suffered a miscarriage in 2008 and delivered a stillborn baby in 2010.

Kim Kardashian is adding another job to her already insanely busy schedule!

The 31-year-old reality star has landed a guest starring appearance on Tim Allen's upcoming ABC comedy Last Man Standing.

Kardashian will play herself in the episode that will air next month.

The plot line will focus on the show's character "Mandy" running into her favorite TV idol.

The soon-to-be-divorced starlet is currently starring on E's Kourtney & Kim Take New York.

FHM

Paris Hilton has certaintly got our attention for the new year in this sexy photo shoot for FHM magazine.

The blonde heiress, posing without her top, is opening up about her soon-to-be-released album hitting stores this summer. Paris tells the mag:

"I have a huge passion for house music. I just haven't been able to focus on it, because I have been doing reality TV for so long now."

As for her new sound, Paris adds, "It's very modern and very catchy; perfect party music."

Princess P has been spending lots of time, including New Year's Eve, with DJ Afrojack. Definitely a hot twosome!

He may not have been faithful to Demi Moore, but one thing's for sure: Ashton Kutcher will always support the Los Angeles Lakers!

The Two and a Half Men star was spotted leaving the Staples Center last night, and while he didn't bring rumored lady love Lorene Scafaria, he did watch the Lakers beat the Houston Rockets by nine points. Score!

Ashton hasn't been tweeting as frequently as he used to, but he did recently post a message about the new year and new beginnings. On Sunday he wrote, "In 2012 let’s agree to a resolution to feel one another’s pain & joy, & create the peace we desire through proactive generosity. XO ak." However, despite his positive note, he later added, “Can we please stop this nonsense #factcheck." Looks like he won't be able to leave his marital troubles behind just yet...

He's dated everyone from Jennifer Aniston to Jessica Simpson to Jennifer Love Hewitt, so clearly the man has had sex appeal at some point!

John Mayer was spotted leaving Katsuya in Brentwood last night, and we're not sure what's going on with his hair or shlumpy outfit, but we totally miss his hotness! Remember the stud from the Gap ad back in 2007? Sigh...

Halle Berry was snapped sporting a sparkler on her ring finger over the weekend while spending time on the beach in Malibu with beau Olivier Martinez and daughter Nahla.

The 45-year-old stunner kicked back at their beach house while Martinez played in the sand with the little cutie and her friend.

Halle was first spotted wearing the ring, with a large emerald stone in the center, while out to lunch with her sexy man in Beverly Hills.

Could Nahla's mom be ready to walk down the aisle for the third time?

Ms. Berry was previously married to baseball player David Justice and R&B singer Eric Benet. Before hooking up with Olivier, Halle dated model Gabriel Aubry ... Nahla's dad.

The Oscar-winning actress' rep has yet to issue a comment.