Kevin Jonas Sr. says that his sons dropped everything to be with him before treatment.
Family means everything to Kevin, Joe and Nick Jonas.
Jonas patriarch Kevin Jonas Sr. revealed that he has been battling colon cancer for the past few months.
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The father of four told NBC Charlotte's Michelle Boudin that he was diagnosed with colon cancer in March, at age 52, but that his sons have been by his side every step of the way.
"They were shaken," Kevin revealed. "Frankie came home from school, Nick came from L.A., Joe flew directly from Japan... They canceled their schedules, moved important things."
"They stayed with us [for the] last meal before surgery," added Kevin, who was treated at the Memorial Sloan Kettering Cancer Center in New York City. "They walked me into Sloan Kettering, which created a little bit of a stir."
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Kevin and his wife, Denise, say they're proud of the men their sons have become while growing up in the spotlight.
“They really did have a meteoric rise,” Kevin said. “It was quick and overnight.”
“We watched them grow up and I think it’s like all parents, you see your kids grow up and if they become good people, you’re proud,” he added.