Wikipedia : This day (February 4, 1975), in Los Angeles, California, died Louis Jordan, a pioneering American jazz, blues and rhythm & blues musician and bandleader
Official Site : He had his first million-seller in 1944 with Is You Is Or Is You Ain’t Ma Baby? His second million-seller was Caldonia (What Makes Your Big Head So Hard?), followed in 1946 by two million-sellers, Beware, Brother, Beware and Choo Choo Ch ‘Boogie, the biggest seller of all.
@allmusic : Jordan’s sensational hit-laden run with Decca Records contained a raft of seminal performances, featuring inevitably infectious backing by his band, the Tympany Five, and Jordan’s own searing alto sax and street corner jive-loaded sense of humor
@last.fm : Jordan was one of the first black recording artists whose popularity crossed over into the mainstream white audience and who scored hits on both the “race” charts and the mainstream white pop charts.