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.

LOS ANGELES, Calif. -- Scarlett Johansson is an undeniable global superstar.

With dozens of films, and even a couple albums, under her belt, the 25-year-old Hollywood bombshell is certainly not lacking in exposure.

But unlike many of the starlets her age, Scarlett has largely managed to prevent herself from becoming a tabloid mainstay. So what's her secret?

LOS ANGELES, Calif. -- Scarlett Johansson is gearing up for the release of her second studio album -- a collaboration with singer-songwriter Pete Yorn - due out this fall.

Set for release on September 15, 'Break Up,' is full of songs about two lovers putting their tumultuous relationship to music.

LOS ANGELES, Calif. -- Scarlett Johansson is set to take on Tony Stark in the upcoming 'Iron Man 2,' but the actress revealed her biggest challenge was preparing to wear her character's revealing Lycra catsuit.

NEW YORK, New York -- Scarlett Johansson's directorial debut has been left on the cutting room floor, the New York Post reported.

The 'Vicky Cristina Barcelona' star reportedly directed a segment for the upcoming anthology film 'New York, I Love You,' which is set to feature work from Brett Ratner and Scarlett's 'The Other Boleyn Girl' co-star Natalie Portman.

LOS ANGELES, Calif. -- Scarlett Johansson has lashed out at the tabloids for suggesting she has been undertaking an extreme regimen to get in shape for her upcoming role in 'Iron Man 2.'

In an essay for The Huffington Post, the actress, known for her dry delivery and her curves, defended getting in shape for her new part.