Following news of Mindy McCready's suicide on Sunday, a friend of hers revealed that the country singer was working on completing a music video as a tribute to her late boyfriend and to raise awareness for suicide prevention, according to Perez Hilton.

McCready recorded I'll See You Yesterday with producer/boyfriend David Wilson in 2012 and following his suicide, she worked even harder to get its music video completed.

"About six months ago she started talking to me about this song she wanted to do. She fell in love with it, and she wanted to make that the title song on her album," McCready's friend Danno Hanks said.

McCready had Hanks use photos he had taken of her with Wilson, and some of her own for the song's video. Hanks said that McCready wanted to add at the end of the clip a link to suicideispreventable.org.

"Then suddenly in the last four or five days she started talking to me every day, and she urgently wanted to get this one song released, but to use it as an anti-suicide public service announcement," Hanks said.

Two days before McCready committed suicide, Hanks send her a private Youtube link to the completed music video, to which she emailed him back saying, "Beautiful. It made me cry." When he asked her on Feb. 16 when she wanted to release the video, Hanks said McCready told him "You'll know when."

Hanks added that he believed McCready planned her suicide for a while, saying, "I realize now she was just trying to put me off."

Watch the completed music video for I'll See You Yesterday below, which McCready saw for the first time days before she killed herself.