"Adam, I'm impressed man," said Judge Randy Jackson.
The impressive performance landed Decker, 28, in American Idol's "Top 40", out-singing tens of thousands of others to make it to the national spotlight. Though it's not the first time he's been on national TV, a few years ago he competed on NBC's America's Got Talent.
"The whole process so far has been fun, it's been grueling," said Decker. "You laugh. You cry. You do so many things just emotionally throughout the process."
Decker survived two rounds of cuts after his group performance, where he sang with 3 other men. One of them was ultimately cut, but the other 3 including Decker made it another another week.
In an exclusive interview via skype, Decker sat down with us Monday night, in the middle of his American Idol journey. It all began at the Pittsburgh auditions where he sang "If I ain't got you" by Alicia Keys. Watch the video above to see Decker sing "Jar of Hearts" by Christina Perri, which he sang in the third round of Hollywood Week on Idol.
In the audition, Decker says he got a "no" from Jennifer Lopez but a "yes" from Randy Jackson and Steven Tyler sent him to Hollywood.
Back home in Cortland, where he was born, raised and learned to sing, Decker has a big band of support.
"It's really exciting to put Cortland on the map nationally and to be able to show them that one of Cortland, New York's own can go and be a part of something big on national television like American Idol"
"It's been pins and needles from the start," said his mother Judy Decker. "It's been an incredible journey. Nothing like this has ever happened in the family so it's been really fun to watch someone you love and care about go through it. I really think he can make it. He just needs a break. It's about having the right people see him, and hopefully this will do it for him."
"He just gives me chills," said Adam's brother Dana Decker. "I've heard him sing his whole life but it's definitely different when he's on national television I think he can be the next American Idol."
Right now, Decker's focus is just surviving the next round of cuts.
Decker now lives in North Carolina with his fiance and when he's not singing, he's bartending at a local restaurant. Decker says he feels the support from CNY. "It's just awesome to have support down here and have support up in New York. It's really nice," he said. "I feel like I have a voice that can pull through and make it to the top 24 so hopefully I can do it."
You can watch Decker perform on American Idol Wednesday at 8 PM on Fox.