Bruce Willis and Demi Moore's daughter Tallulah celebrated her one-year anniversary of sobriety with a party on Monday (06Jul15).

The 21 year old checked into rehab last year (14) to tackle issues including body dysmorphia, depression and reported substance abuse, and she left in September (14) after more than a month of treatment.

She reached the milestone of one year sober on Monday, and her elder sister Scout threw an Asian-themed party to celebrate, complete with oriental parasols and kimonos.

Tallulah shared a series of pictures of the event on Instagram.com and wrote, "Friends, lovers, family... im (sic) real excited to say I have been a fierce sober warrior for 365 days as of today. Thank you to the beautiful humans in my life who have helped me get here.

"(Scout) threw me a sober birthday party and I am so wholly overwhelmed with love right now I want to cry... Last night was one of the most beautiful nights of my life. I was surrounded in a womb of the purest form of love."