Dean McDermott has entered rehab after allegations surfaced that he cheated on wife Tori Spelling, his rep his confirmed.

McDermott said in a statement:

"I am truly sorry for the mistakes I have made and for the pain I've caused my family. I take full responsibility for my actions and have voluntarily checked myself into a treatment center to address some health and personal issues. I am grateful to be getting the help I need so I can become the husband and father my family deserves."

McDermott reportedly cheated on Spelling with a 28-year-old woman named Emily Goodhand last month in Toronto, where he was promoting his series Chopped Canada. Spelling has yet to make a comment on the affair, but there are reports that McDermott is being treated for a sex addiction, among the other "personal issues" he mentioned in his statement.

So what does the other woman have to say about this? Goodhand told Us Weekly, "[Dean] told me he and Tori had a sexless marriage. I believed him." The pair met through friends on December 6 and returned back to his room at the Fairmont Royal York Hotel to have sex ... on the same day!

Talk about dedication! Kim Kardashian ain't jokin' when she says she wants to be a size 0 and, God willing, the girl may just make it there!

Ms. K stopped by Jimmy Kimmel last night to talk about her family's reality show, her baby and her baby daddy, Kanye West and girlfriend showed off her taught tummy in a cropped, baby pink top and matching, skin-tight pencil skirt.

After giving birth a mere seven months ago, Kim's already back in tip-top shape but is she getting lazy about her fitness now that her abs are back? Hell no! Can you believe Kim hit up the GYM after her night show appearance? Check out the proof, after the jump ...

Ben Affleck may be a dad, a regular guy from Boston and a self-professed homebody, but the guy sure has swagga! Most west side soccer dads we know aren't pimpin' a 1966 Chevy Chevelle to Tavern for dinner ... but this one is! Jennifer Garner is one lucky lady ...

Selena Gomez emerged for the first time since her ex-boyfriend Justin Bieber was arrested in Miami Thursday for D.U.I., resisting arrest and driving on a suspended license.

The former Disney stars met at West Hollywood hotspot Craig's for a cozy 5-star meal and, no doubt, for some chit chat about the Biebs.

Demi's been through lots of counseling over the years ... is Selena looking to the pink-haired pop star for advice?

Who knew these two were pals?!

Denise Richards and Joanna Krupa lunched and shopped together Thursday afternoon in Beverly Hills stopping by Villa Blanca for eats and vintage luxury retailer LXRCO afterware for some "gently used" goods.

Krupa wore a sexy maxi-dress that showed off a whole buncha skin, while Denise kept things under wraps in a brown leather biker jacket and pants.

All the photographers were hot and bothered by these two hotties and ended up tripping over each other just to get pictures ... check out the video below AND click through to find out what Joanna says about Justin Bieber ...

Kanye West is back from Paris, and what better way to spend his day than bonding with the two loves of his life?

Kanye, fiance Kim Kardashian and their adorable daughter North shopped for home goods at Bulthaup in West Hollywood, and it may be a while before the trio can move into their massive Bel Air home, but at least their appliances are going to be top of the line!

Kim showed off her impressive post-baby bod in a white henley and skinny jeans, and while this look is on the casual side (well, for her!), we actually caught Kanye checking out her infamous derriere as the two loaded up their car. He just loooooves her curves!

It's still not clear whether the rapper has chatted with police investigating his involvement in an assault against an 18-year-old boy last week. Yeezy left the scene of the alleged crime before cops had a chance to talk with him, and Kim seemingly helped him slip out of the medical office where the incident took place...

Well, acupuncture isn't exactly getting pampered (a message would be more our speed), but it does make Gwen Stefani feel better, and after getting poked with needles, the No Doubt singer headed to the nail salon for a mani/pedi.

We caught Gwen in between appointments, and as always, she looked amazing and flashed us a sweet smile. Gwen's due next month, and last week she revealed that it will be boy number three for her and Gavin Rossdale. Now the only question is what the parents will call the little guy ... as you know, Kingston and Zuma have pretty unique names...

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Justin Bieber was released from police custody at 2:05pm EST after Miami Beach police arrested him at 4:13am EST for driving under the influence and resisting arrest. A source at Miami-Dade Corrections tells X17online that Bieber is currently en route to Opa-locka Airport, presumably to come home to Los Angeles.

The 19-year-old pop star appeared before Miami judge Joseph Farina around 1:09pm EST, at which point his bail was set to $2,500. Cops busted the pop star for speeding on a residential street (he was going between 55-60mph in a 30mph zone), and though Bieber reportedly told authorities that he had not been drinking, officials stated during a press conference that Bieber later admitted "he had consumed some alcohol, been smoking marijuana and consumed some prescription medication."

The police report notes that officers smelled "an odor of alcohol emanating from the driver's breath," adding that Bieber had "slow deliberate movements" and "bloodshot eyes." Bieber blew a .04 on his breathalyzer test, and though the legal limit in Florida is .08, they have a zero tolerance policy for anyone underage whose blood alcohol level is .02 or higher -- it's considered a DUI.

Bieber's rep at Island Def Jam Music Group wouldn't comment on his arrest when we reached out for a statement, and manager Scooter Braun has yet to speak out on the matter.