Lost in the ’80s: The Sinceros, “Pet Rock” Continue Reading Lost in the ’80s: The Sinceros, “Pet Rock” John C. Hughes October 21, 2008 1 Min Read Starting out as a trio called the Strutters, singer/songwriter Mark Kjeldsen along with rhythm section Bobby Irwin and Ron François re-branded themselves as the Sinceros, trading in New Wave and… Lost in the '80s, Music