The Box Tops were a Memphis pop music group of the second half of the 1960s. They are best known for the hits "The Letter," "Neon Rainbow," "Soul Deep," "I Met Her in Church," and "Cry Like A Baby," and are considered a major blue-eyed soul group of the period. They performed a mixture of current soul music songs by artists such as James and Bobby Purify and Clifford Curry, pop tunes such as "A Whiter Shade of Pale" by Keith Reid and Gary Brooker of Procol Harum, and songs written by their producers, Dan Penn and Chips Moman. Vocalist Alex Chilton went on to front the powerpop band Big Star and to launch a career as a solo artist, during which he occasionally performed songs he had sung with the Box Tops.

http://en.wikipedia.org/wiki/Box_Tops
http://www.boxtops.com/