Ian Ross Perrygrove better known as Ian "Dicko" Dickson or simply "Dicko" is an English Australian television and radio presenter, television producer, music journalist and former record company executive and talent scout. He has been a talent judge on Australian Idol, The Next Great American Band, the 2012 reboot of Young Talent Time and Australia's Got Talent. He previously spent over twenty years working in the record industry in both the U.K. and Australia, for labels including Creation Records, Sony, A&M and BMG and for music acts including Celine Dion, Ozzy Osbourne, Primal Scream and Pearl Jam.

Australian Idol is an Australian singing competition, which began its first season in July 2003 and ended its initial run in November 2009. As part of the Idol franchise, Australian Idol originated from the reality program Pop Idol, which was created by British entertainment executive Simon Fuller. Australian Idol was televised on Network Ten for its first seven series and was broadcast on the Southern Cross Austereo Radio Network between 2005 and 2007. The series returned in 2023 after Seven Network announced they would be picking up the show.