which English rock singer  is an international star of The Party Boys
Graham Bonnet Graham Bonnet (born 23 December 1947) is an English rock singer and songwriter. He has recorded and performed as a solo artist and as a member of several hard rock and heavy metal bands including Rainbow, the Michael Schenker Group, Alcatrazz, and Impellitteri. Bonnet is known for his James Dean-inspired style and extremely powerful singing voice and wide vocal range. His singing has been noted as 'very loud' by both his contemporaries and himself, and he claims to be a self-taught singer with 'no discipline for lessons'.
Brian Johnson Brian Francis Johnson (born 5 October 1947) is an English singer and songwriter. In 1980, he became the third lead singer of the Australian rock band AC/DC, after the death of their second lead singer Bon Scott. He and the rest of the band were inducted into the Rock and Roll Hall of Fame in 2003. In March 2016, Johnson stepped down from touring on the Rock or Bust World Tour due to hearing problems. On 20 May 2016, Johnson stated in an interview "I've had a pretty good run" in AC/DC and implied that he might not be returning by saying "I'm just thankful, really, that I came out of it in one piece."