Šmajda grew up in eastern Slovakia with his mom, his father is Czech. Šmajda finished in second place in the Czech and Slovak casting show SuperStar in 2009.[2] In November 2010, he released his first solo album Čo sa týka lásky (lit.'Regarding Love') and in 2013 his second album Mirosmajda.com. With Terrapie, Mai released a titular debut album in 2015, after which he collaborated with Czech rock-band Walda Gang [cs] with the album Je Tu Léto.[3]
In November 2011, RTVS announced that Mai was picked to represent his homeland in the Eurovision Song Contest 2012.[4][5] He sang "Don't Close Your Eyes" under his stage name Max Jason Mai the same year in Baku and finished in 18th (last) place in the semi-final, thus failing to make the grand final.[5]