On this episode of Wonder Why, we look at probably the most uniquely  titled one hit wonder.  "Mmm mmm mmm mmm" by the Canadian group Crash  Test Dummies hit the top ten in 1994.  With the distinct vocals of  singer Brad Roberts, the very descriptive song stood out from the rest  of the songs on the charts at the time.

Why didn't the follow up songs chart well? Why did future Crash Test  Dummies albums fail to make much of a dent in America? @chadsmart and  @MikeDeKalb break down the career and try to figure out why the band  became a subject for Wonder Why.