Dream Theater are announcing the return of drummer Mike Portnoy to the group. Portnoy will reunite with guitarist John Petrucci and bassist John Myung – the trio formed the band at the Berklee College Of Music in 1985 – along with longtime members, vocalist James LaBrie and keyboardist Jordan Rudess. Dream Theater will be going into the studio to begin working on their 16th studio album and the first with Portnoy since 2009’s Black Clouds & Silver Linings.