The remaining 10 contestants of the Top 20 perform duets with all-star celebrity partners from The Wiltern in Los Angeles. Among the stars: Julia Michaels; Lukas Graham; lovelytheband; Cynthia Erivo; Chris Isaak; and Ben Harper.
Laci Kaye Booth and Brett Young perform “Mercy” during the American Idol 2019 Top 20 All-Star Duets round in front of a live audience and judges Lionel Richie, Luke Bryan and Katy Perry.