The 34-year-old singer's full audition will air on Tuesday night (July 18).
The firefighter fanned the flames with a song for his ex-wife.
The singer is now in a recovery facility after being rushed to the ICU in May, his wife Lucie Zolcerva-Grimm shared.
The viral family vocal group belt out Disney's "How Far I'll Go" on AGT.
The North Carolina native has "one of my favorite voices this year," Simon Cowell says.
Freedom Singers launched into a gospel rendition of Red Hot Chili Peppers’ “Under The Bridge.”
“I think you have a very big chance to win this competition,” enthused Sofia Vergara.
“This is my big dream, to be here,” he said.
Simon Cowell admitted he “loved every part of that”.
“We were all mesmerized by you. Your voice, you’re an angel," says Sofia Vergara.
