Pink has opened up about her past drug use.
Lucy Hale celebrated a year of sobriety on 2 January.
Last year, the TV personality announced that she was cutting out alcohol as she was having issues sleeping and no longer wanted to “embarrass” herself.
Demi Lovato teased details of their eighth studio album on Thursday, including snippets of two potential songs.
Lena Dunham has been sober from anti-anxiety pills for three years and says it is the best thing she has ever done.