By People Staff
July 22, 2010 01:00 AM
Marion Curtis/Startraks

After Tuesday’s performance show, Americas Got Talent voters sent Gabourey Sidibe‘s mom — and New York Subway singer — Alice Tan Ridley into the semi-finals Wednesday night.

“Alice is just brilliant,” says judge Piers Morgan, who claims the singers on AGT this season are superior to the contestants on the most recent season of American Idol.

“There are two or three more to come,” he added. “The singers are going be in one hell of a sing-off.”

Howie Mandel agrees that this is Ridley’s time to shine. “Every time she moves on, it’s heartwarming and moving,” he said

Meanwhile, high-flying dancers AscenDance, singer Michael Grimm and magician Antonio Restivo also advanced in the competition.

“It’s one of the rare occasions where I felt my heart ruling my head a bit,” Morgan tells PEOPLE of the judges’ split decision on whether to award the fourth spot in the semifinals to Restivo or hip-hop group Wreckless.

“Both have come from a very hard climb to get to this point,” Mandel, who cast his vote for Restivo, tells PEOPLE. “I just went with my gut.” Restivo lost his father several years ago and the members of Wreckless could not afford a dance studio for rehearsals back in their hometown of Fort Lauderdale, Fla.

Sharon Osbourne cast the deciding vote on which act would continue their dream. She tells PEOPLE she chose Restivo because she could see him as a Las Vegas act. “My heart was with the kids in Wreckless and they’re going to do great things,” Osbourne says. –MoMo Zhou

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