Born: William Arnold - September 16, 1935, Chicago, IL
Instrument: harmonica, vocals
Bands: Billy Boy Arnold (1st single: 1952), Bo Diddley (1954-55)
Discography:
| MORE BLUES ON THE SOUTH SIDE (feat. Johnny Winter) | 1963 |
| CHECKIN' IT OUT (with The Groundhogs) | 1977 |
| BACK WHERE I BELONG | 1993 |
| ELDORADO CADILLAC | 1995 |
| BOOGIE'N'SHUFFLE | 2001 |
| SINGS SONNY BOY JOHN LEE WILLIAMSON | 2008 |
Albums which released later than the recording date:
| JOHNNY JONES WITH BILLY BOY ARNOLD (Live) | 1963 |
| GOIN' TO CHICAGO | 1966 |
| LIVE AT THE VENUE (Live) | 1980 |
| CONSOLIDATED MOJO (Live) | 1992 |