What is Booker T. and the MG’s biggest hit?

The tune “Green Onions” (1962) by Booker T. and the MG’s was the Memphis soul band’s biggest hit and signature song. It was a million-selling single and was released when Booker T. Jones, the band’s leader and organist, was only 18 years old. In 2011 the U.S. Library of Congress added the song to the National Recording Registry.