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Hevisaurus facts for kids

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Hevisaurus Salossa.jpg
Hevisaurus performing at Kauppakeskus Kaari 1.24.2015
Background information
Origin Finland
Genres Heavy metal, children's music, power metal
Years active 2009–present
Labels Sony
Associated acts Thunderstone
Members "Herra Hevisaurus"
"Milli Pilli"
"Komppi Momppi"
"Riffi Raffi"
"Muffi Puffi"

Hevisaurus are a Finnish heavy metal band that formed in 2009 with music aimed at children. The band members are known for performing in dinosaur costumes. Hevisaurus's debut concert was at the Elämä Lapselle charity concert on September 9, 2009. Their first tour started at the Tavastia Club in Helsinki on November 22, 2009.


After attending a children's music concert with his own children, Mirka Rantanen decided to start a heavy metal band for children. Rantanen and his friends from the Finnish "metalhead" community began writing and recording songs.


Hevisaurus has released seven albums to date and the albums have sold over 170,000 copies alone in Finland. Localised versions of Hevisaurus’ albums can also be found in Spanish, Hungarian, Swedish and German.

The album ”Hirmuliskojen Yö” (Night of the Dinosaurs) was the 2nd most sold album in Finland in 2010, when the band was rewarded with the best children album Emma (Finnish equivalent to Grammy).

The Dudesons and Hevisaurus opened up an indoor amusement park to Oulu’s Super Park in April 2013. The band also has their own Hevisaurus game for Android and iOS devices. In the game, you try to finish the levels while listening to the band’s songs. The application also includes mini-games like puzzles. The application was released in 2013.

Hevisaurus have their photo on the walls of Hard Rock Café and have also been listed in the Hard Rock Café’s international database of artists/bands. They are the second Finnish band, besides Amorphis, who have received the honor.

Origin story and characters

According to legend, five dinosaur eggs made from metal survived the mass extinction some 65 million years ago in the mountain of wizards. In the year 2009, witches gathered at the same place. A giant lightning bolt hit the ground and simultaneously created ash and revealed the eggs. From the power of the witches’ chants, the eggs exploded open and five Hevisauri hatched.


The Hevisaurus movie was produced by Solar Films and was filmed in the fall of 2014 and was released in the end of 2015. The movie stars the beloved Hevisaurus characters, as well as famous and rising Finnish actors.

Disagreement with Sony Music

In the beginning of 2011, Mirka Rantanen, the drummer and one of the founding members, fell into a dispute between their record label Sony Music Entertainment about the copyrights and trademarks of the characters. As a result, Rantanen formed a competing band called “Sauruxet”, with the people who played in the Hevisaurus live set-up. The court ordered “Sauruxet” to pay the record label €100,000 and legal fees. Legal documents stated that the rights for the characters had always belonged to Sony Music Entertainment.


  • Hevisaurus ja viittomakielen tulkit
    Mr. Hevisaurus
    "Herra Hevisaurus" (Mr. Hevisaurus) – vocals
  • "Milli Pilli" – keyboards
  • "Komppi Momppi" – drums
  • "Riffi Raffi" – guitars
  • "Muffi Puffi" – bass



Year Album Peak positions
2009 Jurahevin kuninkaat 5
2010 Hirmuliskojen yö 3
2011 Räyh! 2
Räyhällistä joulua 21
2012 Kadonneen louhikäärmeen arvoitus 1
2013 Vihreä vallankumous 10
2015 Soittakaa juranoid! 12
2017 Mikä minusta tulee isona? 29
2019 Bändikouluun! 32


Year Album Peak positions Album
2010 "Hirmuliskojen pikkujoululevy" 1

Other singles

  • 2009: "Jurahevin kuninkaat"
  • 2009: "Viimeinen mammutti"
  • 2010: "Saurusarmeija"
  • 2010: "Kurajuhlat"
  • 2011: "Räyh!"
  • 2011: "Tonttuheviä"
  • 2012: "Ugala bugala"
  • 2014: "Aarrejahti"
  • 2015: "Juranoid"


  • Jurahevin Ikivihreät (2014)

Music videos

  • Jee Hevisaurus (2009)
  • Viimeinen mammutti (2010)
  • Saurusarmeija (2010)
  • Yhteinen joulu (2010)
  • Räyh! (2011)
  • Tonttuheviä (2011)
  • Ugala Bugala (2012)
  • Avaruuden autokorjaamo (2013)
  • Liskodisko (2013)
  • Aarrejahti (2014)
  • Juranoid (2015)
  • 100 (2019)


  • Purppuramysteeri (2010)
  • Eläintarhan yövahti (2011)
  • Salainen tehtävä (2012)
  • Velhojenvuoren salaisuus (2013)
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