Lauri Ylonen is rock singer for the Finnish alternative rock band The Rasmus. He was born in Helsinki, Finland. At a young age he became attracted to music. He learned to play the piano unwillingly when he was five years old. Later, he also learned to play the guitar and drums.

He has released seven albums with the band The Rasmus.

After many years of traveling and touring, The Rasmus has become one of the most popular bands in Finland, as well as being rather well-known throughout Europe and the rest of the world.