For you search query Smooth we found around 603563 songs. We may show you only some of them on this page. "Smooth" is a collaboration between Latin rock band Santana and Matchbox Twenty vocalist Rob Thomas. The song was written by Itaal Shur and Thomas. Define smooth. smooth synonyms, smooth pronunciation, smooth translation, English dictionary definition of smooth. adj. smooth·er, smooth·est 1. a. Having a .