Rap duo Tone the Chiefrocca take the stage at the semifinals, hoping for a shot at the million-dollar prize.
Season 7 finalist Tom Cotter hits Radio City to lighten the mood with his quick-witted humor.
Young pop music siblings Brandon and Savannah rock the house during the live performances at Radio City Music Hall.
Acrobatic stunt team Chicago Boyz takes the stage to battle for a spot in the semifinals.
The Voice Season 3 winner Cassadee Pope performs live at Radio City Music Hall.
Sharon discusses the intense feeling being in a live setting!
Tenor trio Forte delivers one last epic performance during the live finals at Radio City.
Hawaiian dance trio Hype performs at Radio City Music Hall during AGT's live shows, hoping to move one step closer to the coveted million-dollar prize.ale
Sharon pokes fun at Piers and gives Michael Grimm some winning advice!
Opera trio Forte performs live at the AGT semifinals in Radio City Music Hall.
Watch Sharon give you behind-the-scenes scoop!
Nick Cannon wraps up his first season as host and tells NBC.com about his experience.
Illusionists Leon Etienne and Romy Low dazzle the crowd at Radio City Music Hall.
Comedian Taylor Williamson brings the laughs to Radio City Music Hall.
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