premise: Macklemore is a baseball fan.
hypothesis: Benjamin Hammond Haggerty ( born June 19 , 1983 ) , known by his stage name Macklemore ( [ ˈmæk.ləmɔr ] ) and formerly Professor Mack Lemore , is an American hip hop recording artist from Kent , Washington . Their second single , `` Ca n't Hold Us '' , also peaked at number one of the Hot 100 Chart , making Macklemore and Lewis the first duo in the chart 's history to have their first two singles both reach the peak position .