Who Knows Is A Greek Melodic Rock/AOR Band Formed In 1990 In Athens. The Band Has Released Only One Album In 1992 Titled As "At Last It’s The First" By Molon Lave Records. Band Members Are Angelo Katarelos – Vocals Chris Armenis – Keyboards Peter Klitos – Guitars Bass. Additional Musicians Chris Moukos – Drums 3 5 7 & 9 Chris Papastaurou – Drums 4 6 & 8 Bill Xyraphis – Drums 1 & 2 Thanos Efthimiou – Bass 2 Jimmy Vloutis – Bass 4 George Ziogos – Bass 7