Gifty Louise will get a second shot at X Factor's boot camp after she lost her place on the show last year.
The 20-year-old, also known as Gifty Agyeman, returned for another bash at the competition, telling the judges: "I just want to prove you guys wrong."
The student singer made it to the last round of boot camp in 2015 but lost her voice before the final performance.
Music mogul Simon Cowell told her: "Sometimes when you come back second time it's a good thing. I think you could be someone to watch."
Kazzy, a French singing teacher, did not have as much luck when he performed his original song about plastic surgery.
His introduction prompted Sharon Osbourne to exclaim "how dare you!" before Cowell stuck the knife in after the performance, saying: "I think that is the worst song we've ever had on this show."
Boy band 5AM were more successful, securing four yeses from the judges after their performance of Drake's One Dance.
Nathan, 23, Kieran, 21, and Jordan, 20, were called "slick" by Louis Walsh, who added: "You looked like you were having fun, so we were having fun too."
This week, Spice Girls singer and former X Factor judge Mel B stood in for Nicole Scherzinger during her absence, but she was not the only judge to be replaced.
Philip Hadlow, 46, from Margate, tried to impress the judges with his interpretation of Rick Astley's Never Gonna Give You Up.
After his audition, though, he revealed his real dream: "Ultimately I would love to end up on that judging panel."
Cowell invited him to join the panel for the next audition and take over from Louis Walsh, and the next contestant was baffled by Walsh's transformation into a partly-bald Englishman.
Christina Postma, 53, from Holland, performed Big Spender by Shirley Bassey, earning Hadlow's admiration.
Are you single?" he asked, saying: "You've got a lovely radiant smile to go with your voice."
But he agreed with the other judges and said no, explaining: "I'll have to say no at this point. You're not quite ready for the competition yet. A bit unrehearsed."