Watch Heart-Stopping Moment Homeless 'Piano Man' Performs National Anthem at Football Game

A homeless man who shocked the world with his amazing piano playing has now given a heart-stopping performance in front of his largest crowd yet.

Less than two months after Donald Gould was discovered on the streets of Sarasota, Florida, INSIDE EDITION arranged for him to play the national anthem during a Monday Night Football game between the San Francisco 49ers and Minnesota Vikings.

Read: Homeless Piano Prodigy Playing in the Streets Will Take Your Breath Away 

He went through a sound check in an empty Levi's Stadium a few hours before the nationally televised game. He's never played anywhere like that stadium before.

“Wow, never seen anything like this,” he said.

After the final note of his incredible performance, he was swamped with hugs and congratulations.

INSIDE EDITION has been with Donald every step of the way. After meeting him in Florida, we gave him a full makeover so he's almost unrecognizable.

Read: 'No More Caveman!' Homeless Piano Prodigy Stunned By His New Look

We were also there when he was reunited via Facetime with his young son, Donny, whom he hadn't seen in 15 years.

Donald has been getting his life together so he can meet his son in person someday.

Watch Below: Son Meets Homeless Piano Prodigy Dad: I Want to Help Him Clean His Act Up