A nervous, red-faced Tim Olstad, 23, of Winona, Minn., who had trouble holding the microphone steady and answering a question from Demi Lovato about the wildest thing he'd done in his life, said, "I don't know if I can do this. I've doubted myself in the past."
But Olstad let his stunning voice do all the talking.
Singing "A Thousand Years" by Christina Perri, Olstad prompted Kelly Rowland to say, "Your voice came over me like a blanket of love." Paulina Rubio added, "You're like a little teddy bear I want to hug forever," while Lovato remarked, "I get it! You're just so cute the way you are!"
An Audition, and a ProposalDavid Gray, 31, a mechanical engineer from Baton Rouge, La., said he auditioned to support his girlfriend, Lauren Waguespack, 25, who also came to win a spot.
"Have you ever done something out of your element for love?" he asked, before bombing an Usher song.
Gray, however, actually came for a different reason, which became apparent when he asked Waguespack's father backstage for his daughter's hand in marriage.
After Waguespack sang "Teenage Dream" by Katy Perry, Gray rushed the stage and proclaimed, "I love you more than anything else in the world. Doesn't matter what anyone thinks. Lauren, will you marry me?"
"Yes," she said, crying, showing off her engagement ring to the crowd.
"At least you got one yes," Simon Cowell quipped, after the judges voted not to send the bride-to-be to the next round.
Vocal TouchdownLorie Moore, 34, a women's pro football player from Los Angeles, auditioned wearing her jersey, saying, "It's first and goal," just before taking the stage.
But Moore scored a touchdown with her powerful rendition of Whitney Houston's "I Have Nothing," earning unanimous praise from the judges.
"This was more than an audition," Cowell said. "It was a performance."
Perhaps the performance most likely to become a viral video was by the group Second Hand High, a duo who were formerly boyfriend-girlfriend and who performed their own song, "You'd Better Ask Me to Dance."
Although Cowell said they should change their name to "Deluded," Rowland got out of her chair to dance to the catchy, rap-esque lyrics, and the judges even finished the show by spoofing the song, with Cowell rapping the line, "Why buy the cow when you can get the leche for free?"
The top 40 will be revealed, along with the groups the judges will mentor, on Thursday night.