Ex-TNT singer Tony Harnell is rumored to be planning to rejoin his former bandmates for their 30th-anniversary concert on June 2 at the Clarion Hotel in Trondheim, Norway. The group will perform a special setlist while accompanied by the Trondheim Symphony Orchestra (Trondheim Symfoniorkester).In a posting on his Facebook page, Harnell addressed the rumors of his one-off appearance with TNT by writing simply, "You never know," and adding a smiley face. After leaving TNT in 2006, Harnell was replaced by British singer Tony Mills (SHY), who has since appeared on three studio albums from the band: 2007's "The New Territory", 2008's "Atlantis" and 2010's "A Farewell To Arms". Harnell's final release as a member of TNT was the "Live in Madrid" DVD, which came out in September 2006 via MTM Music. The set, which was filmed on April 1, 2006 in Madrid, Spain, was accompanied by an 82-minute audio CD plus booklet liner notes from Harnell about his work with the group as well as an additional tour documentary by Darren Paltrowitz.