Hullabaloo was a musical variety series that ran on NBC from January 12, 1965 through August 29, 1966.

It was originally a one-hour broadcast, airing from 8:30 - 9:30pm on Tuesday nights. In June 1965, it shifted to the 10:00pm time slot, but three months later, the network cut the show to thirty minutes and moved it to 7:30pm on Monday nights, where it remained for the rest of its run.

Hullabaloo served as a big-budget, quality showcase for the leading pop acts of the day, and was also competition for another like-minded television showcase, Shindig!. A different host presided each week - among these were Petula Clark, Paul Anka, Jack Jones, and Frankie Avalon - singing a couple of his or her own hits and introducing acts such as Sonny and Cher, the Supremes, Herman's Hermits, and Marianne Faithful.

The Hullabaloo Dancers - a team of four men and six women - appeared on a regular basis. Two of them - Michael Bennett and Donna McKechnie - went on to achieve considerable fame on Broadway.

Highlights of many of the segments have been compiled for release in VHS and DVD formats.