"Can't Take My Eyes Off You" is a 1967 song written by Bob Crewe and Bob Gaudio. It was recorded as a single by Frankie Valli. The song was among his biggest hits, earning a gold record and reaching No. 2 on the Billboard Hot 100 for a week. Gaudio was a bandmate of Valli's in the Four Seasons. It was Valli's biggest solo hit until he hit No. 1 in 1975 with "My Eyes Adored You".