Dick & Liz Duet in Welsh

Behold this startling - if somewhat cheesy - footage from 1966 of Richard Burton and Elizabeth Taylor duetting in Welsh on American TV. They are treating host, Sammy Davis Jnr, to a rendition of Ar Lan Y Môr (Beside the Sea) - a traditional Welsh folk song. Here are the words in full if you would like to sing along with Dick and Liz.

*Thanks to Dyl Mei for the tip.