"It's Wonderful" is a popular song by The Young Rascals, and their last single under that name. Written by group members Felix Cavaliere

Felix Cavaliere

Felix Cavaliere is an American songwriter, singer, music producer, and musician.Although he was a member of Joey Dee and His Starlighters best known for their hit "Peppermint Twist", he is best known for his association with The Young Rascals during the 1960s. The other members of The Rascals...

 and Eddie Brigati

Eddie Brigati

Eddie Brigati is an American singer and songwriter.Most memorably, Brigati shared vocals, and played tambourine, in the pop group The Young Rascals from 1965 to 1970...

 and with a dual lead vocal from them, it was included on the group's 1968 album Once Upon A Dream

Once Upon a Dream (The Rascals album)

Once Upon A Dream is the fourth studio album by rock band The Rascals, released in February 1968. The album rose to number 9 on the Billboard Top LPs chart and number 7 on the R&B chart.-History:...

. The album's only single, it climbed as high as #20 on the Billboard Hot 100

Billboard Hot 100

The Billboard Hot 100 is the United States music industry standard singles popularity chart issued weekly by Billboard magazine. Chart rankings are based on radio play and sales; the tracking-week for sales begins on Monday and ends on Sunday, while the radio play tracking-week runs from Wednesday...

.

The single's B-side, "Of Course", did not appear on Once Upon A Dream, but would be held over for the group's next album, Freedom Suite.