The classic song, written by Johnny Mercer, is best known for Hepburn’s rendition in 1961’s Breakfast at Tiffany’s which won an Oscar and two Grammys.
Over the years Moon River has been covered by many artists, and now Frank Ocean has dropped his own version.
Tying in with Valentine’s Day, the singer makes it very much his own, but perhaps so much so that some fans think it’s an original song by the artist.
Some took to Twitter, where they expressed their delight at Moon River, as though it was the start of new music from Ocean in 2018.
One fan wrote: “New Frank Ocean song is so awesome it makes me miss my guitar.”
Another said: “Love how we can all freak out when Frank Ocean releases new music. It’s a beautiful thing.”
One added: “New Frank Ocean is just crack to me at this point.”
A fan tweeted: “I woke up to a notification that Frank Ocean came out with a new song and this is exactly what my little heart needed.”
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Ocean is expected to release some new material at some point this year, following a recent message on his Tumblr page.
It read: “If you liked 2017, you’ll love 2018.”