George Clooney proved he is the ultimate party animal when he out-partied younger counterparts including Scarlett Johansson, Eva Mendes and Guy Ritchie on his second night out in London.

The actor was the star guest at a private Christmas bash in aid of war-torn Darfur, which saw a host of A-listers bringing some star-studded glamour to the guest list.

After a wild night out the previous evening, George invited pals Cindy Crawford, Bono, Matt Damon, Christian Slater and even Sarah Ferguson to join him in the festivities.

But it was George and Cindy who allowed for some serious drinking time until 4am in the morning, leaving hours after everyone else had called it a night.

Although George seemed a bit more sober that the previous evening when he attempted to grab a photographer's camera.

Supermodel Cindy, 42, attempted to keep up with the her pal's drinking pace but arrived back at her hotel looking a little worse for wear.

See the Hollywood reunion below