Johnny Logan (born 13 May 1954) is an Australian-born Irish singer and composer. He is regarded as "Mister Eurovision", having participated in the Eurovision Song Contest many times since the 1970s, and, since 1992, has been the most successful artist in Eurovision history.
Logan has won the international contest on three occasions, representing Ireland twice as a performer (1980 and 1987) and twice as a composer (1987; 1992). He also composed the second-placed entry in 1984.
Johnny Logan was born Seán Patrick Michael Sherrard in Frankston, Victoria. Logan's father was an Irish tenor, known as Patrick O'Hagan, who performed for three different US presidents at the White House: John F. Kennedy, Lyndon B. Johnson, and Richard Nixon. The family moved back to Ireland when Logan was three years old. He learned the guitar and began composing his own songs by the age of thirteen. On leaving school he apprenticed as an electrician, while performing in folk and blues clubs. His earliest claim to fame was starring as "Adam" in the 1977 Irish musical Adam and Eve.