This song is called Islands in the stream. It’s a good song, previously sang by .. … … Bee Gees and Dolly Parton? Well, at least that’s what I know. Anyway… here’s a vid clip of someone who sing a duet on it. It’s nice to listen. Hehe.
Edit: According to a trusted source… L actually, haha. Bee Gees is the one who wrote it, the singers will be Kenny Rogers and Dolly Parton. Thanks, L.