Jessica Simpson celebrates four years of being sober

Pop singer Jessica Simpson celebrated four years of being sober (Anthony Harvey/PA)

Pop singer Jessica Simpson celebrated four years of being sober by sharing an “unrecognisable” picture from the day she stopped drinking.

The US star, 41, who as well as her music career starred in films including The Dukes Of Hazzard and Employee Of The Month, said alcohol had left her “exhausted”.