During the 1930s and 1940s, two new sounds emerged. Bob Wills and his Texas Playboys were the leading proponents of Western Swing, which combined country singing and steel guitar with big band jazz influences and horn sections; Wills's music found massive popularity. Recordings of Wills's from the mid 1940s to the early 1950s include "two beat jazz" rhythms, "jazz choruses", and guitar work that preceded early rockabilly recordings. Wills is quoted as saying "Rock and Roll? Why, man, that's the same kind of music we've been playin' since 1928!... But it's just basic rhythm and has gone by a lot of different names in my time. It's the same, whether you just follow a drum beat like in Africa or surround it with a lot of instruments. The rhythm's what's important."