AGT America's Got Talent judges
America's Got Talent judges Howie Mande, Mel B, Heidi Klum and Simon Cowell gather again for the third live show in Hollywood. Twitter/heidiklum

Viewers of “America’s Got Talent” season 11 will have a hard time deciding who to vote through to win the NBC’s top-rated talent show. Here’s a recap of the 12 acts competing for the last seven spots on the semifinals.

1. Watch how Jon Wee and Owen Morse of the juggling duo “The Passing Zone” made fun of judges Mel B, Heidi Klum and Howie Mandel with their out-of-this-world act

3. Watch how Nikki Leonti and her “Edgar” family band serenaded the crowd at the Dolby Theatre in Hollywood with their rendition of “You’ve Got a Friend”

5. Listen to Brian Justin Crum’s cover of “In The Air”

7. Figure out how Blake Vogt concocted his magic act

9. Listen as Linkin’ Bridge made an impression with its acapella performance

11. Hear Ronee Martin’s emotional delivery of “Lean on Me”

Before the Tuesday airing of the AGT live show, hopefuls are reaching out to their fans and social media followers to vote them through to the semifinals, where only 21 acts out of the initial 36 will compete.

Voters have four ways to vote for their favourite acts. Ballots can be casted via “America’s Got Talent” official app among viewers who are 13 years old or older and residing across the United States, including District of Columbia and Puerto Rico.

Under the AGT official app, at least 10 votes per act can be done per email address or Facebook account during the voting window. Votes can also be submitted online via NBC.com or Facebook. The same 10-votes-per-act limit is applicable to the online voting scheme.

Audience can likewise vote for their favourite acts via Google Search via the Google vote widget. Google account holders can only vote up to 10 times per act.

Those without Internet connection can also participate in the voting h by simply calling the unique toll-free number assigned to each act during the show. Callers can vote up to 10 times for each act during the voting window. Voting starts 8 p.m. ET Tuesday and ends 7 a.m. ET Wednesday.