These workouts are really paying off!

Kim Kardashian woke up bright and early to take a pilates class in L.A., and the reality star seems to be keenly aware that she better keep her booty tight and toned since it's landing her in the headlines lately!

The Keeping Up with the Kardashians star caused a frenzy yesterday when photos of her massive derriere, which were taken during her Thai vacation, surfaced online, and today her fiancé Kanye West's collaboration with Future on "I Won" was leaked and it's all about Kimmy K's butt!

"I want to dip that ass in gold, I want to dip that ass in gold / I made it over NBA, NFL players / So every time I score it's like the Super Bowl. Baby, we should hit the south of France / So you could run around without them pants," reads some of the lyrics.

If she didn't have that tush, we wonder where she'd be? Probably working at a clothing store in the valley like she was pre-sex tape!

Ireland Baldwin why can't you just kiss off?!

The attention-loving celeb offspring has been up to her Instagram antics yet again, posting a video of herself dancing to Prince's 1986 hit,"Kiss."

Wearing drop crop leggings, combat boots and a billowy black top, the wannabe model (that's what she's trying to do, right?) stands in the driveway of her lux mansion doing a few not-so-graceful moves for the camera.

Interestingly enough, Prince created the soundtrack to the 1989 film Batman, which featured Ireland's mother Kim Basinger as Bruce Wayne's girlfriend Vicky Vale. It all comes full circle with the Purple One!

After seeing this ridiculous (and not in a good way), we think the teen may to hop on board the Taylor Swift train and take some dance lessons before her next bump-and-grind sesh.

So you think you can dance, Ireland? Newsflash: you can't.

It appears as though Ireland had some second thoughts about posting the unflattering vid -- it's no longer on her Instagram! We aren't sure if Alec's daughter had to take it down because the diminutive popstar, who's been known to sue fans and companies for using his music without his permission, threatened to pursue legal action -- or if Ireland just realized how dumb she looks.

AllPix

Is it just us or is Cameron Diaz upstaging Kate Upton on the red carpet?!

Cameron, Kate and Leslie Mann attended the premiere of The Other Woman on Monday at the Mathaeser Filmpalast in Munich, Germany, and it's hard to believe that Kate is half the age of both of her co-stars! Cam wore an Emilio Pucci dress while Kate rocked a red Fendi, and if we had to choose the best dressed gal on the red carpet, we'd probably go with Ms. Diaz.

So what's their movie about? According to a plot synopsis on IMDb, "After discovering her boyfriend is married, Carly soon meets the wife he’s been cheating on. And when yet another affair is discovered, all three women team up to plot mutual revenge on the three-timing SOB."

Sounds hilarious -- and we love Leslie, so we just might have to catch this one in theaters on April 25!

It wasn't the most romantic start to his fairytale!

Simon Cowell is now in a happy relationship with girlfriend Lauren Silverman and relishing in new fatherhood, but the way his family came together wasn't exactly ideal. The X-Factor head honcho's lady love was still married to his pal Andrew Silverman when news broke she was expecting, and although he doesn't "regret" anything, he does have a bit of remorse about the way the situation was handled.

"It is not something I am proud of or wanted to happen in terms of hurting anyone. It just happened. You have to deal with it and man up to it. You have to accept the responsibility and the criticism. All I can say is, my advice to you is if it happens to you, you just have to deal with it a day at a time and own up to your responsibilities," he confessed in a long interview with the UK's Mirror.

Now that he has a partner and a son to look after, the British media mogul is finding a better balance between work and home life, which he proudly declares has become more centered.

"Maybe because it puts things in perspective having two people in my life who I am responsible for. There were times last year when I would live in two rooms, y'know kitchen and bedroom, in your house. It is a weird existence when you live on your own. On the phone all night, blah blah blah. Now the house is full of people. It has become a home rather than a house," he gushed.

Who would have thought he'd be a family man?!

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Chris Brown's assault case is moving forward! On Monday, a judge in Washington DC rejected the Grammy-winning singer's request to dismiss the case.

Brown's lawyer Mark Geragos argued the case should be dismissed because prosecutors abused the grand jury process to prepare for trial. Geragos also claimed that prosecutors used the grand jury to "freeze" the testimony of the alleged victim, who says Brown and his bodyguard attacked him outside a DC hotel in October.

Geragos even called the alleged incident, "the most investigated misdemeanor of all time."

While Brown's legal team seemed to think the case had no merit, Judge Patricia Wynn disagreed, ruling that prosecutors had a right to use the grand jury to assess the strength of their case.

"I am persuaded that there was no abuse," Wynn said.

The judge also ordered that Brown and his bodyguard, Christopher Hollosy, will be tried separately, and will both be decided upon via judge, not jury. Hollosy's trial will start his trial April 17. Brown's trial will begin once Hollosy's ends.

Bound… by the rules!

Kim Kardashian and Kanye West may have to postpone their May 24 wedding in Paris, due to the fact the couple failed to realize there was a French law that required at least one of them to reside in the country for a minimum of 40 days before a civil ceremony can be conducted.

"Kim and Kanye were unaware until recently that France had a residency requirement prior to the marriage. Kanye has an apartment in Paris, but he doesn't live there full-time," a source told Radar.

Just because they're famous doesn't mean they can get around the rules, either!

"All marriages must be performed by a French civil authority before any religious ceremony takes place. The mayor can authorize the deputy mayor or a city counselor to perform the ceremony in the town in which one of the parties to be married has resided for at least 40 days preceding the marriage. These requirements cannot be waived," the French Embassy in Washington D.C. explained to the website.

Based on what we've been hearing about the plans for Kimye's big day, let's hope rescheduling is even a possibility!

"It’s just insane. Kanye has basically billed it as breaking the boundaries of what to expect when it comes to a wedding. This will be the event of the year. Think fashion runway, stage show performance. Think avant garde. Think nothing like you’ve ever seen," a source dished about the nuptials.

Yeezus, this situation sounds like a headache!

We already got a peek at Miley Cyrus' Elle Magazine cover, but now the real goodies have hit the web -- her interview quotes and some sexy interior photos!

The 21-year-old pop star is interviewed by 17-year-old Rookie magazine editor/fashion blogger Tavi Gevinson, and the ladies discuss everything from Liam Hemsworth to Miley's rise from child stardom.

Miley jumps right into it and says she's in a better place now because of everything she's been through:

"You know, I'm really thankful that I started on Disney. I got the most intense training. There's times where I wish I could have just started as a new artist, but the world has kind of allowed me to do that. I feel really lucky—a lot of kid stars get all crazy or stuck in what they were, so they can't actually become what they're meant to be. When I went through a really intense breakup—you know, I was engaged—and when I was with him or when I was on Disney, the thing that gave me the most anxiety was not knowing what to do with myself when Disney wasn't there to carry me anymore or if I didn't have him. And now I'm free of both of those things, and I'm fine. Like, I lay in bed at night by myself and I'm totally okay, and that's so much stronger than the person three years ago, who would have thought they would have died if they didn't have a boyfriend."

Miley also admits to struggling with depression, and she tells the mag, “It’s totally okay to feel sad. I went through a time where I was really depressed. Like, I locked myself in my room and my dad had to break my door down. It was a lot to do with, like, I had really bad skin, and I felt really bullied because of that. But I never was depressed because of the way someone else made me feel, I just was depressed.”

So what about her stance on feminsm? "I still don't think we're there 100 percent," she says. "I mean, guy rappers grab their crotch all f*cking day and have hos around them, but no one talks about it. But if I grab my crotch and I have hot model b*tches around me, I'm degrading women? I'm a woman -- I should be able to have girls around me! But I'm part of the evolution of that. I hope." Well put, Miley.

And speaking of grabbing her crotch, the "Adore You" singer didn't end up taking the stage in Charlotte, North Carolina on Monday, as she cancelled her concert just 30 minutes before show time. According to a message posted on the Time Warner Cable arena's website, the show was cancelled because "Cyrus has been diagnosed with the flu and doctors have ordered her to rest." Given the fact that Miley has been mourning the death of her dog Floyd for the last week, it sounds like she needs a mental health day too...

Local authorities are still investigating the cause of Peaches Geldof's sudden and shocking death, but according to the Daily Mail, they have found no evidence of hard drugs, a suicide note, or any visible signs of injury.

Police said they were called to a home near Wrotham, Kent in England on Monday after a "report of concern for the welfare of a woman," who was later pronounced dead by South East Coast Ambulance Service. “At this stage, the death is being treated as unexplained and sudden,” a spokesperson for the Kent Police told reporters. "They are now working to establish the circumstances surrounding the death."

Peaches' father Bob Geldof said in a statement on behalf of the entire family, "We are beyond pain. She was the wildest, funniest, cleverest, wittiest and the most bonkers of all of us. Writing ‘was’ destroys me afresh. What a beautiful child. How is this possible that we will not see her again? How is that bearable? We loved her and will cherish her forever. How sad that sentence is."

Peaches' sisters have also expressed their grief, with Fifi posted a throwback photo of the two as kids and wrote, "My beautiful baby sister... Gone but never forgotten. I love you, Peaches x."

Peaches is survived by her husband Thomas Cohen and their two sons, Astala, 23 months, and Phaedra, 11 months.