Thirty, flirty and thriving! Nicky Hilton celebrated her 30th birthday with a swanky Las Vegas bash over the weekend. The fashion designer and her big sis Paris partied down with a bevy of friends at XS nightclub, tweeting and Instagraming up a storm on Sunday night.

"What a wonderful weekend celebrating my gorgeous sister @NickyHilton's Birthday! So proud of my sis, look up to her so much. Such a beautiful person both inside & out," Paris tweeted.

Nicky and Paris, who have never been ones for subtly, made an over-the-top entrance, when they, along with their entourage, strutted their stuff down the club's gold staircase and onto the dance floor as the hotspot's model staff lined the way. At the soiree, Nicky had plenty of goodies to munch on, including a four-tiered cake, a Chanel bag birthday cake and "Nicky Hilton" cupcakes. Sounds like some sweet stuff!

The blonde sisters, plus a gaggle of girls also hit the town hard on Friday night. Lucky for us, Paris Instagramed the entire fun-filled weekend of revelry. Check out the pics!

Not a bad way to kick off your thirties if you ask us!

Miley Cyrus appeared on The Today Show on Monday to chat about her new album, but she also weighed in on her feud with Sinead O'Connor. As you might remember, O'Connor bashed Cyrus and and warned the young pop star that challenging her is "even more f*****' stupid than behaving like a prostitute and calling it feminism."

Miley said:

"My thoughts, if you want to know my thoughts, I think she's an incredible artist. I think she's an awesome songwriter and I was really inspired by her for my 'Wrecking Ball' video, which was what started the whole thing. I don't know how someone can start a fight with somebody that's saying, 'Hey I really respect you and I really love what you did.' 'You know what? You suck!' And that was kind of crazy. But, like I said, I'm a big fan of hers and so it doesn't really matter ... It's all good. You can write as many open letters as you want. That's really what blogging is. I get open letters every day; it's nothing too new for me."

Miley also chatted about how she's doing after her split from fiance Liam Hemsworth, and she said, “I’m the happiest I’ve ever been in my whole life. My plan is focusing on right now … I don’t worry about anything because I know who I am and I know I’m an artist.

So how about the VMAs? Miley said, “I don’t ever plan to offend people but it just happens because I think people aren’t open to what they don’t understand ... It went exactly as planned — it’s a month later and we’re still talking about it.”

Matt Lauer then joked that Miley has forever ruined foam fingers for him, and he asked the 20-year-old singer if her overly sexual personality was “just a phase.” Miley replied, “I heard when you turn 40 things start to go a little less sexual. Probably around 40, around that time I heard people don’t … have sex anymore. So I guess maybe around then.” Matt then admitted that he was 55 years old and Miley didn't even bother backtracking! “55! Then you’re definitely not sexual,” Miley quipped.

Check out her performance of "We Can't Stop" below:

What on Earth is going on here?!

Kris Jenner and Britney Spears' ex-fiance Jason Trawick grabbed dinner in Calabasas last night, and the duo seemed quite cozy with each other!

The Kardashian matriarch wasn't wearing her wedding ring, but she was sporting a huge tell-tale grin!

The 42-year-old former agent hasn't been linked to anyone since his break up with the pop princess, and the 56-year-old momager is rumored to be living separately from husband Bruce Jenner, so could the pair be embarking on a new romance?

Just to play devil's advocate, Jenner's daughter Khloe Kardashian did host X-Factor the same season Brit Brit was on the judging panel, so these two could have developed a friendship backstage, but still...

We doubt her Olympian husband is too thrilled that his wife is stepping out with one of Hollywood's most eligible bachelors!

Is the finger for Lamar Odom?

On Saturday night Khloe Kardashian and The Game hung out with several friends at Pinz bowling alley in Hollywood, and though the two made separate exits, the rapper was definitely quite enamored with Khloe during the course of the evening -- that's her in the black hoodie in the video below.

A photographer on the scene tells X17online exclusively:

"Khloe and The Game were surrounded by pals, but they definitely treated it as more of a date! He couldn't take his eyes off of her and they were flirting and laughing all night long."

The Game is BFFs with Khloe's brother Rob, so we have to wonder if Khloe is flirting with him to make Lamar jealous or if she's actually into him. Kris Jenner wouldn't comment on the relationship over the weekend, but he doesn't have a raging drug problem, so we're willing to overlook the tattoo on his face if he's going to treat Khloe right...

Not like we expected her to give away that information for free!

Kris Jenner stopped at her local grocery store in Calabasas yesterday morning to pick up produce and some festive pumpkins, and the Kardashian matriarch brushed off photographer's questions about daughter Khloe reportedly enjoying new romance with The Game.

X17online caught the middle K sister and the rapper hanging out with pals over the weekend, so we have to wonder if she's already moving on...

Khlo and Lamar Odom's relationship has been in the headlines for weeks now, and new reports claim the reality star is preparing papers to file for divorce from her basketball player hubby, so all signs point to the marriage being dunzo!

If she's truly back on the market, we doubt she will stay single for long!

Somewhere we hope Justin Bieber is kicking himself for breaking up with this brunette beauty!

On Sunday afternoon Selena Gomez went to the gas station, and she showed off her slender stems in a denim romper. Her figure is fab, but what we're really envious of is her gorgeous shiny hair!

In other news, Joe Jonas recently defended Selena on Twitter after teenage newcomer Lorde attacked the singer in an interview. "I love pop music on a sonic level, but I'm a feminist and the theme of her song ["Come & Get It"] is, 'When you're ready, come and get it from me.' I'm sick of women being portrayed this way," Lorde said.

Lorde also criticized Taylor Swift for being too pretty, but she later apologized on her Tumblr account. "There's a lot of importance placed on physical perfection in this industry, and I wish my favourite stars didn't look perfect because I think fans (me included) have these feelings of worthlessness..." she wrote.

So what did Joe have to say? "Hey @lordemusic you say call me Queen B but you shouldn't be attacking all the true Queen B*tches's [sic] #respect," Jonas wrote on Friday. Meow!

Jennifer Lopez gave her daughter Emme a big ol' smooch on Sunday on their way in to Color Me Mine in Calabasas, but the little girl was just not in the mood for a kiss! She's still absolutely adorable though...

Just the night before J. Lo was at the 2013 HRC National Dinner in Washington, DC, where she was honored by the organization. “Jennifer Lopez embodies the spirit of an ally to the LGBT community and we are thrilled to present her the Ally for Equality at our National Dinner in October,” HRC president Chad Griffin said in a statement. “We recognize Jennifer for her talent, style, compassion, philanthropy and generosity, but foremost for her public commitment to LGBT equality."

Between winning awards, bonding with her twins and getting back to work on American Idol later this year, the 44-year-old singer/actress has been quite busy! But too busy to dig through her closet and find the right pair of jeans? These are doing nothing for her hot bod:

Madonna took Rocco, Lourdes and Mercy to Kabbalah in N.Y.C. on Sunday, and though the Queen of Pop was somewhat dressed up, she didn't seem to mind that her two oldest children were wearing sweats.

Madonna made the shocking admission in the new issue of Harper's Bazaar that she was raped at knifepoint 35 years ago when she first moved to New York, and while she mostly babbles on about herself in the essay she penned for the mag, she does briefly mention her kids.

"Ten years later, here I am, divorced and living in New York," Madge wrote. "I have been blessed with four amazing children. I try to teach them to think outside the box. To be daring. To choose to do things because they are the right thing to do, not because everybody else is doing them." Interesting...