Rhythm and Blues or R&B music, was originally termed "race music" and basically included anything intended for African-American audiences. A combination of jazz, gospel, and blues, the term "R&B" was coined in the late 1940s in the United States for use as a less offensive marketing term. While R&B music has evolved over the years to spawn contemporary sounds, the original genre focused on "boogie" rhythms and included such famous acts as Bo Diddley and Chuck Berry. The end of World War II produced a surprising call for new sounds, and the R&B music genre took off as a result.