Kate Moss celebrated her brother’s 30th birthday in style on Wednesday. The supermodel was joined by a host of celebrity pals – including her rocker boyfriend Jamie Hince and singer Lily Allen – at London’s The Dome venue in Tufnell Park to help make sports agent Nick’s landmark birthday a special occasion.

A source told BANG Showbiz: “Kate looked like she was having a great night hanging out with her friends and making sure her brother had a night to remember. As soon as the group arrived, they headed straight to the bar for a round of shots before presenting the birthday boy with a massive cake and singing ‘Happy Birthday.’”

After catching up, the group made their way over to the dance floor to watch and support 35-year-old beauty’s friends, electro-rock duo The Big Pink, perform to guests in conjunction with the re-launch of online retailers Zavvi.com.

The source said: “For someone who is used to the champagne and caviar of the modeling world, Kate didn’t seem to mind swigging beer from a plastic cup. The group were all smiles as The Big Pink performed and Kate was keen, as ever, to show off her dance moves.”

However, once the “Dominoes” hitmakers finished their set, the now “disheveled” beauty was whisked aside to chill out with friends.