The Apple (1980) on Netflix

Alphie and Bibi, two sweet, naive youths from Moose Jaw, Canada, have come to America to compete in the 1994 Worldvision Song Festival. Although the pair have talent, they are beaten out by the underhanded tactics of the festival favorites, another duo with the backing of BIM: Boogalow International Music, and its leader, Mr. Boogalow. Though crestfallen by their loss, Bibi and Alphie are soon delighted to hear that Mr. Boogalow has taken an interest in their music and wants to sign them to his label. All is looking up for the two until they begin to discover the dark underside of the rock and roll world.