This outstanding CD is packed with 26 of the most memorable songs of the mid 20th century rock 'n roll era, among them "Sherry," "Marlena," "Rag Doll" (my own favorite Frankie Valli and Four Seasons song,) "Let's Hang On," and "December 1963 (Oh, What a Night"). And yes, every song on this disc was indeed performed by Valli and the Four Seasons! Fans of 60s and 70s rock 'n roll will find this a genuine "blast from the past," and an essential addition to their CD collection.