Kathy Kirby English singer Kathy Kirby was a successful artist of the 1960s, often compared to Marilyn Monroe for her 'blonde bombshell' looks. She had five Top 40 hits between 1963 and 1965. She is most well known for her cover version of Doris Day's song "Secret Love", which was a No.4 UK hit for Kirby in 1963. She represented the United Kingdom in the Eurovision Song Contest in 1965 and came second with the song "I Belong".