America's Got Talent: Hakuna Matata Acrobats earn the first ever Live Shows Golden Buzzer by Sofia Vergara

Sofia Vergara stood up and slammed down the Golden Buzzer for Hakuna Matata Acrobats, a four member group from Dar es Salaam, Tanzania, on Tuesday's action-packed two-hour episode of America's Got Talent on NBC.

Hakuna Matata Acrobats had just wowed the audience with their death defying strong man acrobatic act. The members balanced on top of each other while standing on a moving platform and at one point one of the acrobats did a headstand on top of another while the platform moved beneath them.

'The is one of the most difficult, dangerous acts we have seen on a live show,' Simon Cowell , 64, said when they finished. 'It felt to me like you have arrived.'

'It's death defying what you do,' Heidi Klum, 51, said. 'On top of it you are doing it on a roller baller. You guys are incredible.'

'This is definitely one of the most ambitious acts I've seen on AGT,' Sofia , 52, said. ' I can see the difference from the audition. You guys deserve to be here. I don't think you guys need any help from anyone. But regardless I'm going to have to do this.'

Sofia Vergara stood up and slammed down the Golden Buzzer for Hakuna Matata Acrobats, a four member group from Dar es Salaam, Tanzania, on Tuesday's action packed two-hour episode of America's Got Talent on NBC

Sofia, wearing a sequined strapless dress, then stood up and slammed down the Golden Buzzer for Hakuna Matata sending them straight to the finals, which was the first Golden Buzzer ever in the Live Shows.

Hakuna Matata Acrobats had just wowed the audience with their death defying strong man acrobatic act. The members balanced on top of each other while standing on a moving platform and at one point one of the acrobats did a headstand on top of another while the platform moved beneath them

Golden confetti rained down and the acrobat group hugged each other, as Sofia said, 'This was perfection,' and Heidi added, 'You deserve it!'

'This is definitely one of the most ambitious acts I've seen on AGT,' Sofia , 52, said. ' I can see the difference from the audition. You guys deserve to be here. I don't think you guys need any help from anyone. But regardless I'm going to have to do this'

Flewnt and Inkabee, a father and son rap duo from Perth, Australia opened the show with an original song. They were the first of the 11 acts in round one of the quarterfinals on the action packed show.

'That was amazing, so energetic,' Howie Mandel, 68, said.

'I just think for the future, if I was your friend, it might be time to separate,' Simon Cowell, 64, said. 'Not in real life.'

Attraction Juniors a shadow theater group from Budapest, Hungary put on a fun story that included a child running scared through a forest into a haunted mansion. The audience gave them a standing ovation.

'This was in a different league in my opinion,' Simon said. 'You did brilliant by the way.'

Howie said he thought they were great but didn't think that they did better than their audition.

Liv Warfield, who was a backup singer with Prince at one point in her career, from Peoria, Illinois, took the stage next. 

She received Simon's Golden Buzzer earlier in the competition. Liv, wearing jeweled headband and fringed robe, chose to sing a special song that she said that Prince wrote for her to sing on the stage. Simon gave her a thumbs up when she finished.

'I thought you were great the first time, this was unbelievable,' Simon said. 'Speechless. Seriously...If this was the Olympics for singing, you would have won the gold medal.'

'That was perfection!' Sofia Vergara, 52, said.

'I loved every second of it,' Heidi Klum, 51, said.

Hypers Kids Africa from Kampala, Uganda went next. The young dance crew out of Africa were excited to have fun on the stage in their act. 

They wanted to use the money to build a bigger home so they could help more kids that lived on the streets. They took the stage and danced in unison in matching outfits.