Chuck Mangione, the Grammy-winning jazz bandleader known for his 1978 hit "Feels So Good," died yesterday at the age of 84, according to a statement on his official website. Mangione achieved widespread recognition with his instrumental piece "Feels So Good," which reached the top five on the Billboard charts. His career spanned decades, during which he released numerous albums and toured extensively. Born in Rochester, New York, Mangione began his musical journey at a young age, later collaborating with his brother, Gap Mangione. He received a Grammy Award for Best Instrumental Composition in 1977 for "Bellavia."