Australian singer and songwriter Sia Furler is officially five years sober and has sent out an encouraging Tweet to celebrate.
Her fans sent loving messages of support.
In an interview last year with ABC's Chris Connelly for Nightline, Sia revealed that 2005 was a low point for her.
It was in 2010 that she began a 10-step program. She's since been nominated for five Grammy Awards, two People's Choice Awards and one Golden Globe.
Congratulations on all of your success, Sia!
If you want to speak to someone about substance abuse and addiction please call Lifeline on 13 11 14.