It's the first time that Pharrell and Delevingne have performed the song live. The Happy musician wrote the song especially at Lagerfeld's request, and approached Delevingne for the track's starring role. In an Instagram post, Williams wrote: "CC the World. Proud of you @caradelevingne".
Watch some footage of the performance below. Given that Delevingne was performing in front of a crowd that included Patti Smith andBeyoncé, we think she acquitted herself pretty well. We'll upload more video as soon as we get them in: