reporter: amy's favorite song, carole king's "so far away," played for family and those who knew her best. among them, producer mark ronson and close friend kellye. >> kelly was wearing a blond beehive in tribute to her friend. >> reporter: this in celebration of a short, but extraordinary life. >> she changed the face and the sound of pop music in her time. lady gaga said that her fame, her success opened the door for people who kind of looked and sounded different. >> reporter: for winehouse it ended like this. her final solo show just last month. ♪ >> she was very troubled. and she had, you know, very bad problems with addiction. but there is another side of her that those closest to her really, you know, cherished. amy's dad said that amy was actually very happy in her last days. >> reporter: he said she'd kicked drugs with the help of her boyfriend and was trying to quit alcohol. she told her dad just days ago, i've had enough. i can't stand the look on your and the family's faces anymore. toxicology test results will take weeks. so, her cause of death is still unknown. >> unfortunately, one way to become immortal in music is to make one g