Gorgeous pop stars and famous actors arrived in NYC yesterday to attend MTV's Upfronts at the Nokia Theatre in Times Square. Although we're only interested in the celebrity action seen through our lenses, Splash had better give you the low down on what exactly MTV were up to.  Press reports have summed Upfront as a "focus on multiplatform opportunities across all of MTV's on-air and online properties, including MTV, VH1, Comedy Central, TV Land, Spike and CMT."

We are huge fans of Liv Tyler here at Splash, so we were very saddened to hear that the movie beauty and her Brit rocker husband Royston Langdon have split after five years of marriage. Confirmed today, the couple released a statement insisting they "remain good friends" and "devoted parents" to their son three-year-old son Milo. 

Liv, 30, had fuelled speculation the relationship was on the rocks by turning up for a red carpet bash in New York on Monday night without her wedding ring, and sources had claimed the pair had been heading for a break-up "for some time". 

There were recent reports in a US magazine the 'Lord of the Rings' star had begun to consider Langdon a "leech" on her assets. She was reportedly overheard talking to her lawyer about getting a divorce "without giving up much of her money". 

The pair married in March 2003 at a private villa in Barbados after Langdon proposed on Valentine's Day. Guests at the ceremony included Liv's 'Aerosmith' frontman dad Steve Tyler and her close pal Kate Hudson. The couple's son Milo was born in December 2003. 

Pictures by Splash News / Luisa Johns / A Macpherson / KCS / Aaron St Clair / Ian Miller / Simon Hammond / Asadorian / Russel Einhorn 

David Letterman's usual dash of entertainment on the Late Show was all the more enjoyable last night, as all the jokes were at Paris Hilton's expense. The comical host wasted no time in quizzing the socialite about her relationship with Good Charlotte rocker Benji Madden, and in return, Paris wasted no time in proclaiming her love; 

Newlyweds Mariah Carey and Nick Cannon made their first public appearance as a married couple last night. On a warm evening, the air was notably full of amore and smiles as the happy couple beamed with obvious delight while departing the Waverly Inn in NYC.

In a cute strapless black dress, Mariah looked a fraction of her 38 years, and her dazzling wedding ring certainly added an extra shine to the diva too! Nick Cannon appeared to be an equally loved up groom, as he clung to Mariah's toned waist and hand. 

The duo married last week in the Bahamas, reportedly with a dozen or so guests. It was a whirlwind romance that grew after the soul singer cast Nick in her latest video "Bye Bye". Lets just hope this ones to last and Mariah wont be saying goodbye to her new man anytime soon.

As Britney Spears headed out last night on a rare evening of socialising, she continued to prove to the waiting media that she is changed, or at the very least, a changing woman. The pop star, who had visited the gym earlier in the day, showed off her figure in a pretty floral dress and a leather jacket as she dined with two friends in West Hollywood. 

As Britney left the plush Sur restaurant, she maturely chose to leave out the back door, showing the paps that she no longer needs the photographers to be the centre of her world. As Spears kept her head down and headed straight for her car everyone also noted that the singer's hair extensions were looking better than ever! 

What's Paris Hilton Selling?

1. Spray tans
2. Sunless tanning products
3. Global warming
4. Hair extensions

Find out after the jump + 30 more pictures of Paris Hilton in the gallery.

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Pictures by Janet Mayer and Jennifer Mitchell