American Idol season 15

Changes from previous seasons

Regional auditions

Semifinals

Top 24 (Group 1)

Top 24 (Group 2)

Wild Card round

Top 10 finalists

• Trent Harmon was from Amory, Mississippi. He auditioned in Little Rock, singing "Unaware" by Allen Stone. When Harmon suffered mononucleosis during Hollywood Week, he continued by singing Sam Smith's "Lay Me Down" as his first solo. In the group round, he was not able to perform with the other contestants due to his illness, and the producers allowed him to perform a solo to advance. He earned a spot in the top 24 during Showcase Week after performing Elton John's "Tiny Dancer."
• La'Porsha Renae was from McComb, Mississippi. She had previously auditioned during the eighth season. She auditioned in Little Rock with Radiohead's "Creep." In Hollywood, she performed Katy Perry's "Roar" as her first solo. She advanced to the top 24 after she sang "The House of the Rising Sun" during Showcase Week.
• Dalton Rapattoni was from Sunnyvale, Texas. He auditioned in Little Rock, with "The Phantom of the Opera." As his first solo in Hollywood, he sang "California Dreamin'" by The Mamas & the Papas. He sang Olivia Newton-John's "Hopelessly Devoted to You" as his final solo. He advanced to the Top 24 after he sang "It's Gonna Be Me" by NSYNC during Showcase Week.
• MacKenzie Bourg was from Lafayette, Louisiana. He auditioned at Atlanta by performing a medley of songs by the judges. He sang his original song, "Roses," as his final solo to advance to the Showcase round. He advanced to the top 24 after he performed "Can't Help Falling in Love".
• Sonika Vaid was originally from Weston, Massachusetts, but moved to Martha's Vineyard. She sang "Look at Me" by Carrie Underwood at her audition in Denver, and received high praise from the judges. She then progressed to the first round in Hollywood, where she sang "Almost Is Never Enough." As her final solo in Hollywood, she performed "One Last Time" by Ariana Grande. In the Showcase round, she performed "I Surrender" by Celine Dion and advanced to the Top 24.
• Tristan McIntosh was from Nashville, Tennessee. She auditioned in Little Rock, performing "Why Baby Why" by Mickey Guyton. In Hollywood, she sang "Something in the Water" by Carrie Underwood as her first solo. She advanced to the Showcase round after performing her final solo, "What Hurts the Most." She advanced to the top 24 after singing "Stronger" by Faith Hill.
• Lee Jean was from Bluffton, South Carolina. He auditioned in Atlanta, where he sang Ed Sheeran's "I See Fire." He sang "Stitches" by Shawn Mendes as his final solo. During Showcase week, he sang "Make It Rain" and earned a spot in the top 24.
• Avalon Young was from San Diego, California. She auditioned in San Francisco by performing an acoustic version of "XO" by Beyoncé. During the final round in Hollywood, she sang Ariana Grande's "One Last Time" and advanced in the Showcase Round. She sang "Yo " by Chris Brown and advanced to the top 24 semifinals.
• Gianna Isabella was from Jackson, New Jersey. She auditioned in Philadelphia, where she sang "The House of the Rising Sun." She sang "One Night Only" as her first solo in Hollywood. She sang her mother's hit single. "I Still Believe," during Showcase Week and advanced to the top 24.
• Olivia Rox was from Agoura Hills, California. She auditioned in San Francisco, where she performed "When I Was Your Man" by Bruno Mars. She advanced in the first round in Hollywood by performing "Genie in a Bottle" by Christina Aguilera. She sang one of her original songs and advanced to Showcase Week. She advanced to the top 24 after she sang Maroon 5's "Love Somebody."