is a 1966 American musical film directed by Arthur Lubin and starring Peter Noone, Shelley Fabares, Herbert Anderson, and Sue Ane Langdon.

When the children of American astronauts choose "Herman's Hermits" as the "good luck name" of the next Gemini space capsule,[1][2] NASA scientist Edward Lindquist is sent by U.S. State Department official Colby Grant to shadow the band on tour.

They take an unflattering picture during a riot of teenage girls at Los Angeles International Airport but the misleading story in the newspapers leads Lindquist to believe that Bannister is an "old friend" of Herman's.

Herman and his bandmates, mobbed wherever they appear, are sequestered in their rooms at the Miramar Hotel by their manager, Dudley, in advance of a charity benefit performance.

Page, the benefit organizer, introduces Herman to her daughter, Louisa, who offers to show him the sights of Los Angeles.

Denied by Dudley, Herman and the Hermits sneak off to Pacific Ocean Park where they split up, reasoning correctly that if they don't stick together, nobody will recognize them.

[2] Hold On!, largely an excuse to string together performances by Herman's Hermits, stars the band as themselves on tour across the United States.

"[7] A total of eleven songs - nine sung by Herman's Hermits, one by Shelley Fabares, and one by a chorus of uncredited girls - appear in the film.

[3] When the film was initially released, the Los Angeles Times said it "lets loose the bright presence of Herman's Hermits on the wide screen" but opined that "their high spirits have been cut down to fit producer Sam Katzman's trite formula for teen-age entertainment".

[10][11] The New York Times called the film "an occasionally amusing but nonsensical pastiche" that served "as the cement to hold together the song sequences of Herman's Hermits".

a "fun and frolic in a formula vein" with the presence of Herman's Hermits making of "a foregone boxoffice win" with "youngsters".

[13] In December 2000, the Denver Post described the band as "a Backstreet Boys for their time" in an article titled "Not quite like Hard Day's Night".

made getting a "British Invasion band to play themselves in a movie with a made-up story" look "so easy" that MGM believed that Herman's Hermits could share similar success but that with Hold On!

[15] Diabolique magazine said "Shelley Fabares is wasted and the film’s quality is a long way from A Hard Day’s Night... but it is full of high spirits and features eleven Herman’s Hermits tunes.