There are several artist called "Ivan", most prominently (1) A Michigan core band called Ivan and (2) the solo career of Men Without Hats singer Ivan Doroschuk.
Ivan (1) is a five-man core band from Grand Haven, Michigan. Ivan's music is smart and radiates a violent fury faced by gutteral screams and twin-guitar attacks. Thunderous drums change direction constantly, counterbalancing the consistently eloquent angst of the vibrant lyrics.

Read more about Ivan on Last.fm.