Carey Mulligan and Marcus Mumford have been notoriously private about their relationship, but the pair came out of hiding last night to make their first public appearance as a married couple.

They were spotted sneaking out of the Metropolitan Museum of Art's Costume Institute Gala afterparty in New York, along with pal Florence Welch in the wee hours.

With his arm around his new wife, the couple looked loved up as they posed for the waiting paps.

Wearing a stunning sparkly gold frock, Carey was also seen earlier in the evening proudly flashing her big rock as she posed on the red carpet.

The couple wed in a private ceremony last month, which took place in a converted barn on a working farm in Bridgwater, Somerset - glamorous, we know - but some star power was added by guests Sienna Miller, Jake Gyllenhaal and Colin Firth.

> IN PICS: THE MET GALA 2012

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• Schiaparelli and Prada: Impossible Conversations Costume Institute Gala

  Beyonce

• Schiaparelli and Prada: Impossible Conversations Costume Institute Gala

  Donatelle Versace

• Schiaparelli and Prada: Impossible Conversations Costume Institute Gala

  Alicia Keys and Swizz Beatz

• Schiaparelli and Prada: Impossible Conversations Costume Institute Gala

  Amber Valletta

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  Amy Adams

• Schiaparelli and Prada: Impossible Conversations Costume Institute Gala

  Brook Shields

• Schiaparelli and Prada: Impossible Conversations Costume Institute Gala

  Cameron Diaz

• Schiaparelli and Prada: Impossible Conversations Costume Institute Gala

  Carey Mulligan

• Schiaparelli and Prada: Impossible Conversations Costume Institute Gala

  Cate Blanchett

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  Dakota Fanning

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  Daniel Radcliffe and Rose Hemingway

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  Diana Agron

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  Emma Roberts

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  Emma Stone

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  Florence Welch

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  Lana Del Ray

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  Lea Michele

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  Leighton Meester

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  Liv Tyler

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  Mary-Kate Olsen

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  M.I.A.

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  Mila Jovovich

• Schiaparelli and Prada: Impossible Conversations Costume Institute Gala

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  Renee Zellweger

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  Rosie Huntington Whitley

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• Schiaparelli and Prada: Impossible Conversations Costume Institute Gala

  Sofia Vergara

• Schiaparelli and Prada: Impossible Conversations Costume Institute Gala

  Tom Ford and Chanel Iman

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