Hullabaloo was an American musical variety series that ran on NBC from January 12, 1965, through April 11, 1966 (with repeats to August 1966).

Chart-topping acts who performed on the show included Simon and Garfunkel, the Mamas & the Papas, Dionne Warwick, Gary Lewis and the Playboys, the Lovin' Spoonful, the Rolling Stones, the Yardbirds, Sonny & Cher, the Supremes, Herman's Hermits, Frankie Valli and the Four Seasons, the Animals, Roy Orbison and Marianne Faithfull.

The first 13 episodes of Hullabaloo included black and white segments taped in London and hosted by the Beatles' manager Brian Epstein where he introduced up and coming UK music acts to the American audience.

In 1973, after the shows production company declined to own the original color masters (as NBC was purging much of the content from its archives in the wake of the Financial Interest and Syndication Rules[5]), the episodes were wiped and only three half-hour episodes are known to exist in their original color videotaped form.

Additionally, a special entitled “Hullabaloo—a 60’s Flashback” has been produced under “My Music” umbrella for use by PBS stations during pledge drives; it premiered in March 2013.

In Quentin Tarantino's 2019 film Once Upon a Time in Hollywood, fictional actor Rick Dalton (Leonardo DiCaprio) appears as a guest host on Hullabaloo, singing the 1956 song "Green Door".