For a new 2010 Toyota Prius commercial, Toyota commissioned the services of a distinct vocal harmony on the song "Let Your Love Flow" to complement the sunny visuals created for their popular auto:
For this 3rd generation Toyota Prius commercial, singer Petra Haden sings an a capella cover version of "Let Your Love Flow" (originally by The Bellamy Brothers), singing all the parts of the song herself, with no instruments. Toyota has produced a series of commercials all featuring vocals by Haden, including Prius ads called "Harmony", "MPG", and "Solar". Each TV spot highlights different aspects of the Toyota Prius.