Sam Smith has confessed that he was "very naive" in believing that the public would automatically love his Spectre theme song Writing's On The Wall.
The 23-year-musician admitted that the felt very confident about the Bond theme tune before it was released but quickly realised he could not please everyone.
Speaking to Annie Mac on BBC Radio 1, Smith revealed recording the song "felt like a dream come true for me, but I was very naive about the whole thing, because I love the song, so much, still love it."
He explained that after his parents and friends said they were fans he was feeling really confident about it, "and I still feel confident about it - but when I released it, I was very naive and I thought everyone would love it. But Bond, it's impossible for everyone to like a Bond song."
Smith made history with the first Bond theme song to reach number one in the charts but the song was released to mixed reviews.
"The fan base, they're mental, so that initial release with the mixed response, I was like, OK, just finding my feet. But when it went to number one, it was just unbelievable, it was amazing," he added.
His number one song crowned a successful year for Smith, who won four Grammy Awards in February including the coveted song of the year and record of the year just nine months after the release of his debut album In The Lonely Hour.
Asked what his highlight of the year had been, Smith said: "Work-wise, I have to say the Grammys, it's the happiest I've ever been in my entire life."
