When the name of Dennis' rock band was decided (Sons of Rock), production searched the Internet to check if a band with that name already existed. Surprisingly, that search took them to Spanish rock/RnB/soul band Sons of Rock, founded and leaded by Alba Cespedes. They contacted Alba to ask permission to name the band in the movie Sons of Rock and offered to include one of her songs in the soundtrack. If you listen closely to Dennis' radio in his workshop, you will listen to the solo in Sons of Rock's song 'My Name is Lucille', from their self-titled album. The song is included in the movie credits.