Chuck Mangione, the flugelhorn legend behind “Feels So Good,” has passed away at 84. His music made jazz joyful, hearts lighter, and even King of the Hill cooler. Rest easy, Chuck — your melodies will play on forever. pic.twitter.com/wttT6FVEwG

Chuck Mangione, the jazz trumpet legend whose song "Feels So Good" found new life on TV's "King of the Hill," has died at 84.

Chuck Mangione, the Grammy-winning jazz bandleader and musician who scored an unlikely top-five hit in 1978 with the jazz instrumental "Feels So Good," has died at age 84, according to a note on his official website.