In it Coco Chanel, played by Geraldine Chaplin, visits a Salzburg hotel and finds unlikely inspiration for the design of her now very famous Chanel coat.

"It was really the moment to show the roots where the jacket came from, inspired by the lift boy in a hotel near Salzburg in the early '50s when she made her comeback," Lagerfeld explained in a behind the scenes interview from the video set.

Lagerfeld masterminded the design and shooting of the film, which looks like a high-fashion take on Wes Anderson's aesthetic, and tapped Pharrell for his musical talents and to take the starring role as the inspiringly outfitted boy in question.

"We're in his office and he's explaining this whole entire thing," Pharrell said in the clip. "Then he says, 'It's Austrian, so I want to hear Austrian music, but with your twist at the end okay? You see, you see?' And I'm like, 'Sure.'"

Delevingne takes a different role, playing a very naughty bar maid who gets up to every kind of mischief. Her transformation into a royally outfitted lady, who dances and sings with Pharrell, is pure Chanel.

"When Pharrell called me up and was like, 'We're going to do a song for it as well,' I was so happy I think I screamed down the phone at him," Delevingne said with a laugh. "And within five days I was in the studio recording it with him."

Chanel's Metiers d'Art 2014/15 Paris-Salzburg collection is revealed today at the 18th century Schloss Leopoldskron.