Hilary Duff and hubby Mike Comrie are the proud parents to a bouncing baby boy!

The 24-year-old starlet Tweeted: "Welcome to the world, Luca Cruz Comrie!"

Luca, who was born Tuesday night, weighed in at 7 pounds, 6 ounces.

The new mom added:

"We are overjoyed and feel like the luckiest parents in the world. He is surrounded by so much love!! Mom and baby are both doing extremely well.”

This is the first child for the couple who announced they were expecting in August 2011.

Congrats you two!

Whitney Houston's official cause of death has been ruled as "drowning and effects of atherosclerotic heart disease and cocaine use," according to the singer's toxicology report released Thursday.

The report also states: "Cocaine and metabolites were identified and were contributory to the death. Marijuana, Alprazolam (Xanax), Cyclobenzaprine (Flexeril), and Diphenhydramine (Benadryl) were identified but did not contribute to the death."

Houston was discovered unresponsive in the bathtub by a member of her entourage at the Beverly Hilton Hotel on Feb 11, and later pronounced dead at the scene. Preliminary media reports suggested that her death would not ruled a drowning and that no water had been found in her lungs, so the Coroner's findings come as a surprise to many.

It is possible that Houston could have suffered a heart attack that caused her to lapse into unconsciousness and drown.

The 48-year-old Grammy winner is survived by her only child, daughter Bobbi Kristina Brown. The 19-year-old is the sole heir to Houston's estate.

Gwen Stefani has been hitting the recording studio hard ... working on the new No Doubt album. So exciting!

The blonde beauty, rocking head to toe black, signature red lips and a leather sleeveless shirt, looked picture perfect while out running errands. We're glad the "Just A Girl" singer toned down that massive mom hair she was sporting yesterday.

Click thru to see Gwen holding on tight to her hubby Gavin.

Katherine Heigl must really be on a tight schedule these days!

The actress arrived at a movie studio today looking like she came straight from the gym... I guess when you're a working mother in Hollywood it's all about time management!

Somehow, the 33-year-old star still finds time for arts and crafts projects. Earlier this week, Josh Kelley's wifey tweeted: "I've been going craft crazy w/ ideas I got off pinterest" and posted a photo that her hubby snapped of her in their backyard.

Some people can just do it all, can't they Katie!

Lisa Rinna ditched her makeup - and her bra! - when she headed to yoga class in Hollywood Thursday, and we have to give her props for being so bold!

The 48-year-old mother of two clearly doesn't slack on her fitness routine... just look at that body! It doesn't seem like Miss Rinna ever ages either. Her hubby Harry Hamlin is one lucky guy!

It was recently announced that the soap opera actress is reprising her role as Billy on Days of Our Lives. We wonder what plot lines the producers have cooked up for her?!

Can't wait to see you back on TV girl!

Rob Pattinson is leaving his Twilight image in the dust in this provocative new trailer for the film Cosmopolis.

Kristen Stewart's beau, who is playing a man with a number of mistresses, gets down and dirty in the 30-second teaser ... and manages to shoot a bullet into his hand. Yikes!

The film also stars Juliette Binoche and Samantha Morton. Cosmopolis is set to hit theaters later this year!

Selma Blair is lovin' life as a mom, and we can see why!

The Cruel Intentions actress took her adorable son Arthur for an afternoon stroll. Look at that cute face!

Blair, who says she is still breastfeeding her baby, will soon be starring opposite Charlie Sheen in Anger Management.

Enjoy the free time while you have it, Selma!

Do these DWTS pros ever take a break from practice?!

Chelsie Hightower arrived at the studio Wednesday to brush up on her skills with partner Roshon Fegan, and she looked picture perfect in bright yellow jeans, grey wedges, and a leather jacket. I guess you can make bold fashion choices when you've got a toned dancer bod!

The 22-year-old hottie is hoping for better scores from the judges this week, after coming in third place with 23 out of 30 points for the Cha Cha on Tuesday's premiere. Regardless of performance, Hightower and Fegan have something to brag about... Britney Spears is rooting for the dancing duo!

Brit Brit's fiance Jason Trawick is friends with Fegan, and the pop star made a trip to the ballroom last week and tweeted: "Just went to Dancing with the Stars to support Jason's friend Roshon Fegan. He is so cute! And wow can that boy dance!"

Sounds like if it doesn't work out on DWTS, Roshon can always join the Queen B on tour!