Raskasta Joulua is a music project from Finland in which diverse artists have recorded traditional Christmas carols and Christmas hits in a heavy metal style. "Raskasta joulua" is a term in Finnish which means "heavy Christmas" in English. The concept was founded by guitarist Erkka Korhonen in 2004. Many notable Finnish metal vocalists have appeared on Raskasta Joulua albums and tours, including Marko Hietala, Jarkko Ahola, Ari Koivunen, Juha-Pekka Leppaluoto and Tony Kakko.
The band's first album, Raskasta Joulua, contained performances by the Trans-Siberian Orchestra and was produced by T2 Productions. The album was released in December 2004.
The second album was released on the Warner label in 2006 after a promotional 3-concert tour in December 2005 increased the popularity of the project. This led to increased sales of the subsequent releases. Raskasta Joulua have toured every year since 2005 and the 3 concert tour has become an annual tradition.
In 2013 the band changed their record label for the second time and signed to Spinefarm Records. They also released their second self-titled album, which achieved platinum status in Finland.