Julian Edwin “Cannonball” Adderley (September 15, 1928 – August 8, 1975) was an American jazz alto saxophonist of the hard bop era of the 1950s and 1960s.

Adderley is perhaps best remembered for the 1966 soul jazz single “Mercy, Mercy, Mercy“, which was written for him by his keyboardist Joe Zawinul and became a major crossover hit on the pop and R&B charts. A cover version by the Buckinghams, who added lyrics, also reached #5 on the charts. Adderley worked with Miles Davis, first as a member of the Davis sextet, appearing on the seminal records Milestones (1958) and Kind of Blue (1959), and then on his own 1958 album Somethin’ Else. He was the elder brother of jazz trumpeter Nat Adderley, who was a longtime member of his band.

Julian Edwin Adderley was born on September 15, 1928, in Tampa, Florida. Elementary school classmates called him “cannonball” (i.e., “cannibal”) after his voracious appetite.

Cannonball moved to Tallahassee when his parents obtained teaching positions at Florida A&M University. Both Cannonball and brother Nat played with Ray Charles when Charles lived in Tallahassee during the early 1940s. Adderley moved to Broward County, Florida, in 1948 after finishing his music studies at Florida A&M and became the band director at Dillard High School in Fort Lauderdale, a position which he held until 1950.