Demi Lovato 's father Patrick passed away on June 22, 2013. Now, she's marked the one-year anniversary of his passing with a heartfelt photo collage and tweet.
Demi posted a collage of four black-and-white photos of herself as a little girl with her dad. "Can't believe it's already been a year.. Wish I could've hugged you one last time.. RIP Daddy, I love you," she tweeted.
She added , "My dad suffered from severe mental illness so at least there's peace in knowing he's not suffering anymore."
Last year, Demi appeared on ABC's Good Morning America and said of her dad, "My father and I didn't have the most ideal relationship but at the end of the day he's still my dad and I grew up with him and he was a wonderful person. And it's difficult but I'm handling it OK."
That same day, she also announced that she was launching the Demi Lovato Treatment Scholarship program, which covers expenses for those struggling with mental health or addiction issues.
Follow @ABCNewsRadio Copyright 2014 ABC News Radio
Can't believe it's already been a year.. Wish I could've hugged you one last time.. RIP Daddy, I love you. pic.twitter.com/kuR6p1hkTx— Demi Lovato (@ddlovato) June 20, 2014