Tuesday night's fourth episode of America's Got Talent featured a wide variety of acts, including singers, dancers and eccentric acts.

Here are some significant highlights from the episode:

The Virginia State University Gospel Choir:

This singing group came out and raised the spirits of the judges and the crowd, singing and dancing to a medley of gospel songs. The judges were thrilled by the performance, especially Mel B who admitted, "I wanted to join you!" Judge Howard Stern said that he could see the act being loved by America. They were sent through to the Vegas round.

Hammerstep:

This Irish tap dancing act with a hip-hop twist surprised the judges with their advanced skills. Judge Heidi Klum said that their performance was "hardcore" and Howie Mandel said it was "new, surprising and exciting." The act was sent through to Vegas.

Taylor Williamson:

This comedian won the audience over with his quirky stage presence and stand-up routine. He told jokes about his grandma, Chinese food and putting a comforter inside a duvet. Mandel said it was amazing that he hadn't been "seen" as a comedian and welcomed him to the show. He was sent through to Vegas.

Brandon & Savannah:

This brother and sister act sang an original song with their band and rocked the whole crowd. Mel B said that though she didn't love the song, their performance was still captivating. Stern said that they belong on the stage. They were sent through to the Vegas round.

Forte:

This opera trio met online only a few days before their audition but put together a performance that blew the judges and audience away. "What beautiful voices the three of you have," Klum said. Mandel said that they were "phenomenal." The trio was sent through to the Vegas round.

The season's fifth episode is scheduled for Tuesday, July 2 at 8 p.m. on NBC.

Watch the fourth episode here: