What is O.S.T.R's real name?
O.S.T.R's real name is Adam Andrzej Ostrowski.
Adam Andrzej Ostrowski (born 15 May 1980 in Łódź, Poland), better known as O.S.T.R., is a Polish rapper, musician, audio engineer and record producer, famous for his freestyle rap skills, ambitious lyrics and unique beats.
Source: Wikipedia: O.S.T.R.
