Demi Lovato's father passed away after he battled cancer for years.
Lovato, 20, told her fans that her father died via a tweet. "I feel so humbled to have had so much support from my fans, friends, family and complete strangers. God bless you all, thank you so much love."
Whether the father and daughter were able to say goodbye is not known. The two had been estranged for years. In 2009, Lovato admitted, "The last time I talked to him was two years ago. When somebody lets you down after you've been the only one there for them, and so many times, you don't know what else to do."
She sang about her relationship with her father in "For the Love of a Daughter" in the Unbroken album of 2010.