Originals: Song to the Siren by Tim Buckley (covered by Damon & Naomi)
Tim Buckley released Song to the Siren on his 1970 album Starsailor, before that however it had been performed by Tim on the last episode of The Monkees in 1968:
Also before Tim's release it had appeared on Pat Boone's 1969 LP Departure, apparently we're not supposed to like Pat's version but it's not so bad (if you ignore the odd couple of seconds at the beginning), I rather like the brass led arrangement, and like it more as it gets bigger, probably because by then Pat's croon is getting a wee bit tiresome... it's not as good as the version from The Monkees (above), but (and here comes controversy), it's better than the hammed-up version on Starsailor
Tim Buckley - Song to the Siren (Starsailor)
Damon & Naomi released a beautiful version of the song on their fake "Live in San Sebastian" album in 2002.