Jonathan “Yoni” Wolf is an American alternative hip hop and indie rock musician and co-founder of the record label Anticon.
 
From the mid-1990s until 2004 Yoni Wolf released music under the stage name Why?. In 2004 he transferred that name onto his newly founded band. Thereafter he has been credited for his solo work as Yoni Wolf.
 
Prior to the founding of the band Why? in 2004, Yoni Wolf had also been a member of numerous other groups, including Greenthink, Clouddead, Reaching Quiet and Hymie’s Basement. (via wikipedia)
 
Why? official site
Yoni Wolf on Tumblr