The now middle aged best friends set out on a new adventure to seek the song that will set their world right and bring harmony in the universe, helped by their daughters (played by Samara Weaving and Brigette Lundy-Paine), a new batch of historical figures and a few music legends. The film also stars Kristen Schaal, Erinn Hayes, Jayma Mays, Holland Taylor, Kid Cudi, Anthony Carrigan, Jillian Bell, Beck Bennett, William Sadler, Hal Landon Jr. and Amy Stoch.
