This compilation contains nearly all of their Atlantic singles, in chronological order, released from 1965 through 1970.

All three of their Billboard Hot 100 number-one singles are included here: "Good Lovin'", "Groovin'", and "People Got to Be Free".

In addition, their hit singles "How Can I Be Sure" and "A Beautiful Morning" are also included on the compilation.

Writing for AllMusic, critic Ron Wynn praised the album and wrote "The Rascals, along with the Righteous Brothers, defined blue-eyed soul singing, making records that were as churchy, earthy, and convincing as anything that came out of the South or Motown in the '60s, backed by tight, anthemic arrangements and excellent combo playing...

The single version of "It's Wonderful" ends with a coda of "Mardi Gras"-style special effects and party sounds that were not included in the album version.