The Cool Ones

The Cool Ones (aka "Cool, Baby Cool") is a 1967 film starring Roddy McDowall and directed by Gene Nelson. The 1960s novelty singer known as Mrs. Miller performs in a cameo role, and the film features performances by the bands the Leaves and the Bantams as well as a brief appearance by Glen Campbell, playing a fictional singer.
Plot.
A millionaire rock promoter joins a pop singer and a dancer in a romantic match as a publicity stunt for a new television series.
Cast.
In an uncredited appearance: one of the dancers is Teri Garr, specifically as one of the Whiz-Bam girls.
Reception.
The film received mostly negative reviews and is now viewed as something of a 60's cult musical. From the blog "Comet Over Hollywood":"The Cool Ones" has earned a place on my list of the worst movies that I have ever seen. But then at the same time, it’s so bad you can’t look away and have to watch the whole movie.
And from the "New York Times":"The Cool Ones" [is] a rock 'n' roll comedy, so-called, about a pop singer (Debbie Watson) who is on the rise and a big-name crooner (Gil Peterson) who is on the skids. Roddy McDowall is their manager who engineers them into a publicity romance which has—shall we say?—repercussions. I venture to guess this will disgust even the kids.