Dundertåget is a Swedish rock band, the band was originally formed by lead vocalist and guitarist Robert Dahlqvist in 2004 as Thunder Express as a side project while playing in The Hellacopters. However in 2008 the band released their first album in Swedish entitled Skaffa ny Frisyr. The band's second album - Dom Feta Åren är Förbi - was released in 2010.