lily allen green halloween outfit

Green is definitely Lily Allen’s colour. The north London star covered herself in green paint as she dressed up for UNICEF’s Halloween ball in London on Thursday night.

lily allen unicef halloween ball shrek

Lily performed alongside Robbie Williams, singing their duet, Dream A Little Dream from his upcoming new album Swings Both Ways.

lily allen unicef halloween ballThe mother-of-two is planning on making a comeback with her track Hard out Here. The 28-year-old released her last album in 2009.