NEW YORK, NEW YORK - MAY 01: Billie Eilish attends The 2023 Met Gala Celebrating "Karl Lagerfeld: A Line Of Beauty" at The Metropolitan Museum of Art on May 01, 2023 in New York City. (Photo by Dimitrios Kambouris/Getty Images for The Met Museum/Vogue ) By Sandra Stojanovich and Lisa Richwine
The "Birds of a Feather" singer claimed the prize over other nominees including Taylor Swift, Kendrick Lamar, Sabrina Carpenter, Morgan Wallen and Zack Bryan.
"This is so crazy. I feel speechless," Eilish said in a video from Europe, where she is on tour. "I wish I could be there tonight."
"That's So True" singer Gracie Abrams, winner of new artist of the year, also sent a recorded video from a location on tour to accept her honor. She thanked her fans, who she said "I have been lucky enough to learn from."
"They have reminded me of the light that exists out there," Abrams said.
SZA took home AMA accolades for female R&B artist and for R&B song for "Saturn." Becky G was named favorite female Latin artist.
The festivities opened with host Jennifer Lopez singing and dancing to a six-minute medley of 23 hits by the nominees. The songs included Billie Eilish's "Birds of a Feather," Sabrina Carpenter's "Espresso" and Beyonce's "Texas Hold 'Em."
The show was broadcast live on CBS PARA.O from the Fontainebleau Las Vegas hotel.
(Reporting by Lisa Richwine; Editing by Mary Milliken, Frances Kerry and Stephen Coates)