The blond supermodels were attached at the hip as they attended Chanel creative director and designer Karl Lagerfeld's fragrance launch VIP dinner at Harrods on Thursday evening in London.
Delevingne was sleek in a white pantsuit, a low-plunging black top and open-toed black booties. The British beauty wore her hair down and added a pop of color with bright red lips.
Bradley Cooper's ladylove donned a pale short sleeve pink frock with a white belt, beige strappy heels with gray detail and white stockings.
The fun-loving pair, who recently appeared in a sizzling Burberry ad campaign, was spotted laughing at their table and posing for some silly selfies at the formal affair.
Princess Beatrice was also in attendance at the soirée.
It is no surprise that Delevingne was present to support Lagerfeld's latest endeavor. The 21-year-old recently walked hand-in-hand with the fashion icon at Chanel's supermarket-themed Paris Fashion Week show.