Bear Family fashioned their explosive THAT'LL FLAT GIT IT series as the ultimate rockabilly jukebox and VOL. 21 keeps with the theme, focusing on the deep vaults of Atlantic Records. Collecting sides by mostly unknown artists--many of whose releases appear only in these volumes--THAT'LL FLAT GIT IT - VOL. 21 is a rockabilly fan's dream, with 29 tracks from 1956 to 1967. Atlantic may have made its name in other genres, but with a roster filled with the likes of David Gates, Barbara Greene, Mad Man Taylor, and countless others tearing up a walking bassline and a reverbed guitar, the label clearly had its share of greased dynamos.