Twelve quarter-finalists made up of singers, dancers and eccentric acts will perform live on America's Got Talent Tuesday night from Radio City Music Hall in New York City.

Here's a preview of 12 acts that will be performing, with videos provided by clicking on their names.

Alexandr Magala:

This sword-swallowing pole dancer had the judges on the edge of their seats in his audition and his Vegas performance. His act may get even more dangerous now that he's performing at Radio City Music Hall.

Angela Hoover:

Hoover is a comedienne who impressed the judges with her impersonations of various actresses that she was automatically sent through to the live shows solely on the basis of her audition. Some of her impressions include Penelope Cruz and Drew Barrymore.

The Aquanauts:

This group of synchronized swimmers wasn't featured much in their original audition but they were sent through to the live show after the auditions. It should be interesting to see them adjust their act for a stage.

Brad Byers:

The second sword-swallowing act of this bunch, Byers pulled a cart through a hook in his nose in his Vegas performance, which seemed to both disgust and impress the judges. Like Magala, his act could get even more dangerous on the live show.

Ciana Pelekai:

This young singer stunned the judges in her audition and in Vegas with soulful performances of Etta James songs, Something's Got a Hold on Me and I'd Rather Go Blind. She may perform another James song in her live show performance.

Dave Shirley:

Shirley is a self-proclaimed comedian who doesn't tell jokes, expressing his comedy through dance. He was sent through on the basis of his audition.

Forte:

This opera trio seems to lose and replace a member with each performance but they've stunned the judges every time. After opera singer Branden James was sent through to the semifinals last week, America may vote for this trio too.

Innovative Force:

This gymnastic dance act was also sent through after their audition. The young girls should be hoping for a better fate than last week's young dance act Fresh Faces, who were eliminated by America.

Kid the Wiz:

This hat trick dancing act made a few mistakes in his Vegas performance but the judges agreed that he was truly talented and deserved a second chance for the live show. He'll have to up his performance to stand out from the crowd.

Marty Brown:

A country singer, Brown touched the judges with his performance of Bob Dylan's Make You Feel My Love. His Vegas performance was enough to send him through to the live rounds.

Struck Boyz:

This group of young boys performed a hip-hop dance act and charmed the judges. They immediately advanced to the live shows on the basis of their audition.

Tone the Chiefrocca:

This rapper said that he wanted to be a one-hit-wonder and performed his original song, Booty. He may perform Booty again or another novelty song.

Only four acts will advance to the semifinals: the three acts who get the most votes by America and one judges' choice. America's Got Talent will air the live show Tuesday at 9 p.m. on NBC.

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Americas Got Talent