Matti Matt also known as Matthías Matthíasson is an accomplished artist from Iceland. Matti has performed in musicals such as Hair and Jesus Christ, where he played Peter and was nominated for an Icelandic Music Award for "Best Newcomer" in 1995 for his acting in Jesus Christ Superstar. 
 In 1996, he was recruited by athlete Magnus Scheving to be the singing voice of Sportacus (Icelandic: Íþróttaálfurinn) in the original Icelandic LazyTown plays, Áfram Latibær! and Glanni Glæpur í Latabæ. Matthías continued this role in the LazyTown television series, where he sang Sportacus' vocals in both the English and Icelandic dubs. 
 In 1997, his band at the time, Dúndurfréttir, was praised by Rolling Stone as "the best Pink Floyd, Led Zeppelin cover band ever". 
 In 2010, he progressed to the semi-finals in the selection of the Icelandic Eurovision. 
 In 2011, he became the lead vocalist of the tribute band Sjonni's Friends, the band which represented Iceland in the Eurovision Song Contest 2011, where they performed the song "Coming Home”. Matti is like a gift that keeps on giving with his multitalented vocals and range of emotions displayed through his music.