 Since 1983, OZ has been active mostly in Sweden as the band members moved to Stockholm after the release of their second album.In 2010, drummer Mark Ruffneck (born Pekka Mark), bassist and main songwriter Jay C. Blade (born Jukka Homi, but has changed his name to Jukka Lewis) and vocalist Ape De Martini (born Tapani Hämäläinen) re-formed the band, together with Costello Hautamäki and Markku Petander.As of 2016, OZ consists of four different members from Pori, Finland with Ruffneck being the original sole member.