Conceived by an anonymous egg donation, 19-year-old Elizabeth, who goes by the stage name Gaba, recently found the donor, Amy. Gaba showed up for her "Idol" audition with both her mother and her biological egg donor.

It turned out Gaba has inherited Amy’s talent: Remarkably, Elizabeth attends the same college that Amy did, is pursuing the same major, and even sings in the same a cappella group that her egg donor did.

Amy joined Gaba for an audition-room duet on a song, and their voices were astonishingly similar.

https://tvline.com/2019/03/15/american-idol-season-17-watch-episode-4-audition-video/