Question: When was the singer who performed "I Should Be So Lucky" born? 
Related documents: [0]  [DOC] Kylie Ann Minogue, ( ; born 28 May 1968), often known simply as Kylie, is an Australian singer, songwriter, dancer and actress. She achieved recognition starring in the Australian soap opera "Neighbours", where she played tomboy mechanic Charlene Robinson. Appearing in the series for two years, Minogue's character married Scott Robinson (Jason Donovan) in an episode viewed by nearly 20 million people in the United Kingdom making it one of the most watched Australian TV episodes ever. Since then, Minogue has been a recording artist and has achieved commercial success and critical acclaim in the entertainment industry. Minogue has been recognised with several honorific nicknames including "Princess of Pop" and "Goddess of Pop". She is recognised as the highest-selling Australian artist of all time by the Australian Recording Industry Association (ARIA). [END] 
[1]  [DOC] "I Should Be So Lucky" is a song performed by Australian recording artist and songwriter Kylie Minogue from her debut studio album "Kylie" (1988). Released on 29 December 1987 by Mushroom Records and PWL Records, the song became a worldwide breakthrough hit; its now-iconic image of Minogue on the front cover was shot by David Levine. The song was well received by music critics. [END] 
Answer: 
28 May 1968
28 May 1968