Back-to-blonde Ashley Tisdale left her giant boyfriend at home to gym it up at Equinox Monday afternoon, leaving her work out with a bottle of water and protein smoothie. Wait a minute... what happened to her Coffee Bean ice-blended chai?

She's turned her back to them for something healthier! Hates it.

But does that mean Hollywood celebs will start covering up their beach bods? We sure hope not!

Today is the first day of Fall which means, sadly, that Summer 2009 has officially come to an end. In memory, check out our last pics from the shirtless season - Pam on the beach, Gavin playing tennis and Kristin shooting The Hills...

Let's just hope they all remember to keep working on their fitness during the cold upcoming months!

Lauren Conrad may have quit The Hills, but she's definitely been keeping herself busy! Whether she's prancing around on the beach with her shirtless BF or grabbing lunch in Beverly Hills with her BFFs, it looks like the wannabe fashion designer has her calendar totally booked! But wait a second...isn't that Kim Kardashian's BFF Jonathan? Think Kim knows he's stepping out on her with another cute reality TV starlet?

Everyone's doing it! First Joe Jonas, now the guy from Glee.

Fox released this sexy promo for tomorrow night's episode featuring character Kurt (Chris Colfer) taking on Beyonce's "Single Ladies (Put a Ring on It)" music vid - you know, the one Kanye called the "BEST OF THIS DECADE!"

Check it out below:

We could barely believe it was happening this quickly ourselves, so it's no surprise Lamar Odom's baby-mama and former high school sweetheart Liza Morales would be shocked at how fast everything is happening!

"It's just really, really shocking," Morales tells E!. "Everybody, and I quote, 'everybody' is shocked by this."

So is the shock that Lamar's marrying Khloe? Or that he's getting married after only two months of dating?

"Lamar was always a commitment-phobe," she said. The exes actually got engaged over eight years ago but despite having three children (including one who died of SIDS), they never made it down the aisle.

Let's hope this weekend's a different story!

Photo courtesy The CW

College begins for the characters of Gossip Girl! Remember what it was like to be an incoming freshman? I do!

Here's the thing about GG: The first season was the best and that's that, but I still watch for one reason only... Blair Waldorf! She's good when she succeeds, but she's even better when she fails. Whaddya think of her being roomies with Georgina Sparks, arguably the other most interesting character on the series?

I dunno if Queen B will ever be queen at college - it's quite a different world than high school! But watching her having to deal with Georgina on a daily basis? Priceless.

Who knew America's sweetheart was a fan of the pop princess?!

Jennifer Aniston is currently in Texas, (we're guessing she's scouting locations for her new film, The Goree Girls), and spies at Britney Spears' El Paso concert tell X17online that the actress dropped by to catch the Circus singer shake her booty onstage at the Don Haskins Center on Monday night! Random, right?

Maybe Jen was trying to get some performance tips from Brit? Or perhaps she simply enjoys a heavy dose of pop music? Either way, we love it!

So unusual to see him in anything but black and white (and grey)! Nicole Richie's babydaddy visited a music studio in the San Fernando Valley yesterday afternoon... think he stole that hat from Sam Ronson's collection?