"""FILE - This is a Sunday, Oct. 31, 2010 file photo of  U.S musician Alice Cooper as he performs his 'Halloween Night of Fear' show at The Roundhouse in north London.  Shock rocker Alice Cooper gave the audience at Tuesday night's Aug. 14, 2012  """"Rock of Ages"""" show a surprise, by joining the cast of the London  West End musical on stage. The 64-year-old delighted spectators by performing his classic hit """"School's Out"""" - to mark the anniversary of the track going to No. 1 in the U.K. charts 40 years ago this week. (AP Photo/Joel Ryan, File)"""
{}