LOS ANGELES, Calif. -- Pop stars Rihanna and Lady Gaga don't just top the charts - between the two of them, they arguably have the wildest wardrobes in music.

But looking so haute is hard work.

LOS ANGELES, Calif. -- A photographer suffered a heart attack and died in New York City on Tuesday night - but not because of Lady Gaga, as some outlets online have reported.

The star walked the runway in yet another wild outfit at Cipriani 42nd Street on Monday night, causing online reports that celebrity photographer A.J. Sokalner suffered a heart attack after spotting her - which a source at his agency, ACE Pictures, strenuously denied to Access Hollywood on Wednesday.

LOS ANGELES, Calif. -- For the fashion forward Lady Gaga, every day could be Halloween - but the star told Access Hollywood's Billy Bush in an interview for 'The Billy Bush Show' that she's hoping to dress down on the holiday.

'I'm excited for this year because I found out that some people will be dressing like me, so I'm hoping I can just not dress up and go out unnoticed,' Gaga said.

LOS ANGELES, Calif. -- Is Adam Lambert hitting the studio with Lady Gaga?

'Yes it's true,' the 'American Idol' runner-up Tweeted on Monday. 'I spent yesterday in the studio w the insanely talented and creative Lady GaGa recording a song that she wrote! I love her.'

NEW YORK, New York -- Madonna has opened up about her divorce with Guy Ritchie last year.

In a new Rolling Stone cover story, the pop queen admitted splitting with the British film director brought her to a low point.

WASHINGTON, D.C. -- Lady Gaga took a break from 'The Fame' on Saturday night to 'Imagine' a different tomorrow.

'I'm not going to play one of my songs tonight. Tonight is not about me. It's about you,' she said in a video available on YouTube before launching into John Lennon's classic song at the Human Rights Campaign's dinner the night before the National Equality March in Washington, D.C.

NEW YORK, New York -- 'Saturday Night Live' is known for its surprise celebrity guests, but on Saturday, the NBC late night show had a big night even by its own standards.

Lady Gaga, the show's musical guest, was joined in a comedy sketch by one of her idols - Madonna. The two singers - dressed in revealing lingerie-like outfits - fought over who was the bigger star before being separated by Keenan Thompson during an MTV-style 'Deep Dish House' segment.

NEW YORK, New York -- Kanye West and Lady Gaga may have canceled their 'Fame Kills' tour on Thursday, but the 'Just Dance' singer won't be sitting at home this fall.

Lady Gaga revealed to Access Hollywood on Friday that she will indeed be hitting the road in the coming weeks.

'We just mutually decided to cancel the tour, but I'm still going on tour this November,' the pop princess told Access.

LOS ANGELES, Calif. -- Kanye West's tour with Lady Gaga has been canceled, Access Hollywood has confirmed.

'Live Nation announced today that the Kanye West and Lady Gaga 'Fame Kills' tour has been canceled,' the tour promoters said in a statement to Access Hollywood.

By Jesse Spero

LOS ANGELES, Calif. -- Plus, Madonna's brother slams her VMA outfit. Find out what Nick Jonas got for his birthday. And, George Clooney is a marked man!

Your Daily Dispatch of Celebrity Shenanigans!

LOS ANGELES, Calif. -- Lady GaGa has worn Kermit the Frog as a jacket - and now, she's got him as a date.

The singer arrived on the MTV Video Music Awards red carpet with the famous Muppet, who was wearing a tuxedo for the occasion.

LOS ANGELES, Calif. -- Lady GaGa is known for her chart-topping pop songs and unusual stage attire but she's managed to shock fans again, teaming up with Michael Bolton.

Access Hollywood has confirmed that GaGa has co-written a ballad with the adult-contemporary singer, expected to land on his upcoming album, 'One World Love,' which is due out later this month.

LOS ANGELES, Calif. -- Jay-Z and Lady Gaga have joined the list of 2009 MTV Video Music Awards performers.

The stars will join a number of acts set to take the stage at the annual awards show on Sept. 13, including Green Day, Pink, Taylor Swift and Muse.

LOS ANGELES, Calif. -- MTV announced the nominees for the 2009 MTV Video Music Awards on Tuesday and the ladies of music lead the pack of Moon Man hopefuls.

By Jesse Spero

LOS ANGELES, Calif. -- Plus, Nick Jonas and Miley Cyrus duet and smooch. Mel Gibson's girlfriend drops her music video. And, Blake Lively breaks down her hard hard life as an actress.

Your Daily Dispatch of Celebrity Shenanigans!