Anne Hathaway spent New Years Eve walking arm in arm with Valentino strolling around Gstaad, Switzerland, where they both rang in 2013 at Valentino's NYE party. The designer had plenty of A List guests at the event, as Madonna was also spotted at the bash and rumour has it they sang a duet together at the party. Now THIS is a rumour we hope is true.

2012 was a special year for these fashionable friends, as Anne Hathaway married Adam Shulman in a frothy, sugary pink gown which was surprise, surprise by Valentino. The designer has said of Anne: "She's a very good friend of mine, she's like my daughter." We took a look back at where this friendship all started and it's true, they really are BFFs.

Anne has been on the front row at his couture shows in Paris, Valentino has been to her film premieres and it was Anne who introduced Valentino when he was inducted into the Rodeo Drive Walk of Style in Beverly Hills in 2009. It also helps to have a designer pal to call on when you have to hit a red carpet or two, so it's hardly a surprise that Anne is constantly spotted in Valentino couture. She wore a white gown with a black bow to the Oscars in 2007 and a red strapless gown to the Oscars in 2011.

Take a look at where the Anne Hathaway and Valentino friendship all started in the gallery above....