Which astronaut sang 'Danny Boy' on the ISS on Saint Patrick's Day 2013?

Chris Hadfield sang “Danny Boy” on the International Space Station on Saint Patrick’s Day 2013.

The Canadian astronaut recorded and shared his rendition on 17 March 2013 while serving aboard the ISS. He marked the occasion with Irish-themed messages, photographs of Ireland from orbit and green clothing, including a green bow tie. His broadcast became one of the most memorable cultural moments of his mission.

Hadfield was commander of the space station during Expedition 35 and had already attracted a large online following through photographs, videos and explanations of life in orbit. His Saint Patrick’s Day performance extended that public outreach into music. He sang while floating in microgravity, turning a familiar Irish standard into an informal space-station greeting.

“Danny Boy” is not an ancient traditional song: its lyrics were written by English lawyer and songwriter Frederic Weatherly, and the melody is based on the traditional Irish tune “Londonderry Air.” Hadfield’s performance is also sometimes confused with Catherine Coleman’s 2011 Irish-instrument performance. Coleman played Irish music in space; Hadfield sang “Danny Boy” there in 2013.