'American Idol' recap: Who did Katy Perry save from elimination?

In a dramatic episode of "American Idol," judges Katy Perry, Luke Bryan, and Lionel Richie participated in the Judge’s Song Contest, selecting songs for the Top 8 contestants. Katy Perry emerged victorious again, with four contestants choosing her song selections. Highlighting the night, Emmy Russell's performance of "Coal Miner’s Daughter" deeply moved Perry. Additionally, Perry used her power as the contest winner to save contestant McKenna Faith Breinholt from elimination, securing her a spot in the Top 7.