Aretha Franklin's Granddaughter Grace Franklin Auditions for 'American Idol'
on Sunday's season 20 premiere. The late Aretha Franklin's granddaughter, Grace Franklin, the 15-year-old daughter of Aretha's son, Kecalf Cunningham, tested her own musical chops in front of judges Katy Perry, Lionel Richie and Luke Bryan. Grace shared her lineage with the judges right off the bat, and opened up about her relationship with the late R&B legend in an aside package. «I was really close with my grandma.