David Hasselhoff hit the town on Saturday night to celebrate his 60th birthday!

The actor was joined by girlfriend Hayley Roberts, daughter Taylor Ann Hasselhoff, and members of the original Baywatch and Knight Rider casts, for his b-day bash at LA hot spot Greystone Manor.

As a very special gift, his former cast mates presented the pop culture icon a replica of KITT, the car from Knight Ryder, in the parking lot with his girlfriend and daughter by his side.

The gang was just missing Hasselhoff’s youngest daughter, Hayley, but onlookers said Taylor Ann did enough partying for the both of them as she danced the night away with friends at a table.

The Hoff partied hard for his birthday celebration, but our source tells MJ, “he wasn’t drinking…he joked he couldn’t eat anymore cake since he had to drive his precious cargo home!”

LOL! Happy Birthday, Hasselhoff!

Al Powers | Powers Imagery

Former lead Pussycat doll Nicole Scherzinger flew to Vegas for the weekend to celebrate her 34th birthday!

On Saturday she reportedly spent the day poolside with friends, sporting a Deepa Gurnani headband and zebra print bikini at Tao Beach. Later that night, she was spotted looking sexy in a gold backless Haute Hippie dress and gold Giuseppe heels while she partied all night at Tao Asian Bistro at The Venetian Resort Hotel Casino.

After DJ Vice led the night club in “Happy Birthday,” Nicole was surprised with a cake. She next took the mic and said: “What’s up Vegas? Thank you so much for coming to celebrate my birthday.”

Nicole also gave a special performance during the show and the tao beach twitter account tweeted: “Surprise birthday performance @TaoBeach by the birthday girl @NicoleScherzy! Giving us a gift on her bday!”

Happy early birthday Nicole! (her actual birthday is June 29)

Mary-Kate and Ashley Olsen turn 26 today!

It seems like just yesterday the twins were on Full House sharing the role of little Michelle. Since then, their popularity has grown tremendously and they have appeared in other tv shows and movies as well as created their own clothing line. Just last week they were honored at the 2012 CDFA Fashion Awards, where their clothing line The Row was awarded with Womenswear Designer of the Year!

The dynamic duo has been very successful for the past 26 years and we can’t wait to see what they will be doing next.

Happy birthday MK and Ashley!

PHOTOS: Jamie McCarthy/WireImage.com

Happy Birthday, Lance Bass!

The former boy bander was snapped celebrating his birthday in St. Martin over the weekend, with boyfriend Michael Turchin and several friends including TV personality Pedro Andrade.

Sources tell MJ the group stayed in a $4,000 per night villa at La Samanna Resort & Hotel, where they enjoyed beach activities during the day including jet skiing.

Then, on Saturday night, following a dinner at Bamboo Bernie’s, Lance Bass’ birthday group continued the celebration at Tantra Nightclub followed by games of roulette at Casino Royale.

Justin Bieber -- Interview with Micah Jesse (2009)

Happy Birthday Justin Bieber!

In honor of his 18th birthday today, I dug up some old footage from 2009 where I caught up with Justin in NYC just weeks after signing his first record deal with Usher and Island Def Jam. He was in town promoting his very first single, “One Time,” and I got a last minute call for an interview opp with the young pop star, and after being a fan for many years, writing about him on my site while he was unsigned and posting videos on YouTube, I excitedly rushed from my downtown apartment to meet up with Justin and his day-to-day manager, Ryan Good, at their midtown hotel for a quick chat.

– CLICK TO WATCH MICAH JESSE’S INTERVIEW WITH JUSTIN BIEBER — IN 2009 — BEFORE HE WAS A MEGA STAR! –

After the interview, JB was kind enough to welcome in the all new MicahJesse.com! (Watch that video below)

How much do you think I’d have to pay him to do it now?

All joking aside, “the kid” (as his manager Scooter Braun calls him) has come a long way since then (and thankfully so have I…wink!). Justin is a tremendously talented, kind, and giving young artist, and I want to wish him many more years of success!

Justin, if you’re reading this (ha!), it’s been a pleasure watching you grow.

Happy Birthday, Justin Bieber! Never say never!

PICTURED: Edward Norton/Official Photo

Actor Edward Norton only wants one thing for his birthday from family, friends and fans: support for his favorite cause.

“I’ve got enough stuff…really, there’s not a single material thing I need or want for my birthday,” Edward Norton wrote. “I have no more room for it. But I really like this idea of celebrating someone on their birthday by supporting their efforts to make the world a better place. That’s seriously cool and if I can turn my birthday into a catalyst for that kind of giving I’ll be very happy about getting older every year.”

In 2009, Edward helped raise $1.2 million for the Maasai Wilderness Conservation Trust which works to protect the legendary ecosystems and astounding biodiversity of East Africa by developing sustainable economic benefits for local Maasai communities.

Donate on his Crowdrise page and keep reading — to read Edwards letter in its entirety!

PHOTO: Al Powers / Retna Ltd.

A little “Booger Sugar Scandal” won’t stop Paris Hilton from going back to Las Vegas (where she was arrested last August) to celebrate BFF Allison Melnick‘s 40th birthday on Saturday night (Jun 12).

Paris is such a good friend!

Accompanied by sister Nicky Hilton, the girls danced the night away to the sounds of Kaskade at the newest hotspot on the strip — Marquee!

Happy Birthday, Allison!!!