Rock & Roll Is Good for You: The Fieger/Averre Demos is an album by The Knack which was released on September 11, 2012. It includes demo recordings made by Doug Fieger and Berton Averre made between 1973 and 1975. Most of the songs are performed by just Fieger and Averre, both singing and playing guitar, but some songs include the full band. Two of the songs, "Good Girls Don't" and "That's What the Little Girls Do," were released in more polished form on the Knack's debut album, Get the Knack. Other songs whose demos appear on Rock & Roll Is Good for You later provided elements for other Knack songs. For example, "Corporation Shuffle (Daddy Turns the Volume Down)," described by Allmusic critic Stephen Thomas Erlewine as "a nifty bit of fuzzy, snarky rock & roll in the vein of the Move," provided the basis for "Terry & Julie Step Out," a song from the 1998 album Zoom.
Allmusic critic Stephen Thomas Erlewine praises the "pop craftsmanship" shown by Fieger and Averre on the album. He also notes that "the best moments are the noisiest" but that the quieter moments are fine too. He also states that the songs on the album demonstrate that the Knack had the ability to be "more than a one-hit wonder."