Katie Holmes and Jessica Alba ditch the dresses for trousers at Armani dinner

That”s just pants! Katie Holmes and Jessica Alba ditch the dresses for trousers at Armani dinner

4:44 PM on 12th October 2011

Yin and yang: Katie Holmes and Jessica Alba went for black and white chic at the Giorgio Armani/Vanity Fair Private Dinner in Los Angeles last night Yin and yang: Katie Holmes and Jessica Alba went for black and white chic at the Giorgio Armani/Vanity Fair Private Dinner in Los Angeles last night

Yin and yang: Katie Holmes and Jessica Alba went for black and white chic at the Giorgio Armani/Vanity Fair Private Dinner in Los Angeles last night

British actress Sophie Winkleman, who is married to Lord Freddie Windsor

Don”t wear that to the palace! British actress Sophie Winkleman, who is married to Lord Freddie Windsor, opted for what looked like harem pants with a very revealing blazer

Holding her own: So You Think You Can Dance host Cat Deeley also joined the Americans at the event, also sporting trousers Taking Hollywood by storm: The Help star Emma Stone was joined by other rising star Camilla Belle

There was clearly a dress code! So You Think You Can Dance host Cat Deeley also wore a pant suit, as did Camilla Belle

Taking Hollywood by storm: The Help star Emma Stone stood out in metallic green as she hosted the event

Taking Hollywood by storm: The Help star Emma Stone stood out in metallic green as she hosted the event

Talented: Emma joined Giorgio Armani

Talented: Emma joined Giorgio Armani”s neice Roberta Armani who once wanted to be an actress but now works for the designer, handling events

Black and white hot: Amber Heard, who stars alongside LeAnn Rimes Black and white hot: Amber Heard, who stars alongside LeAnn Rimes

Black and white hot: Amber Heard, who stars alongside LeAnn Rimes” husband in the Playboy Club, and stylist Rachel Zoe

Hollywood royalty: Producer and actor Mark Wahlberg and his wife Rhea Durham arrive at the party

Hollywood royalty: Producer and actor Mark Wahlberg and his wife Rhea Durham arrive at the party

Hollywood hunks: Josh Hartnett and recently-separated James Marsden looked equally dapper in black Hollywood hunks: Josh Hartnett and recently-separated James Marsden looked equally dapper in black

Hollywood hunks: Josh Hartnett and recently-separated James Marsden looked equally dapper in black

Dedicated: Josh posed with Roberta who has worked for her uncle for more than 20 years

Dedicated: Josh posed with Roberta who has worked for her uncle for more than 20 years

Heart-throbs: Former Glee star Chord Overstreet joined Melrose Place and The O.C. star Adam Brody Heart-throbs: Former Glee star Chord Overstreet joined Melrose Place and The O.C. star Adam Brody

Heart-throbs: Former Glee star Chord Overstreet joined Melrose Place and The O.C. star Adam Brody

Continuing the trend: Actress and model Devon Aoki Russian actress Olga Fonda who will appear in The Twilight Saga: Breaking Dawn and Real Steel

Continuing the trend: Actress and model Devon Aoki and Russian actress Olga Fonda, who will appear in The Twilight Saga: Breaking Dawn and Real Steel

Actress and singer Brie Larson arrives for the event Tori Spelling

Actress and singer Brie Larson arrives for the event along with Tori Spelling”s mother Candace Spelling