Taylor Swift is a "huge fan" of James Bay.
The 'Out Of The Woods' hitmaker was introduced to James by mutual friend and fellow musician Hozier when the pair were touring last year.
The 'Hold Back the River' singer was hanging out in his dressing room when Taylor came to see him to declare her love for his music.
Asked about Taylor's fangirl moment, he told the latest issue of NME magazine: "That was when I was doing a tour with Hozier. They're mates and she was coming along. She came in with all her bodyguards but stopped at the door of my dressing room and said, 'Oh wow, I'm a huge fan of your music.' She went off on one about my music - really in depth. It was really nice that someone up in the stratosphere of pop was digging deep into someone so unknown."
Since releasing his debut LP 'Chaos and the Calm', James has picked up a lot of famous fans such as Ed Sheeran and Rolling Stones guitarists Keith Richards and Ronnie Wood.
James and Ed have become friends and he can recall one surreal moment when the 'Tenerife Sea' singer introduced him to pop bad boy Justin Bieber at a private party.
The 25-year-old rocker - who has been nominated for an impressive four BRIT Awards - recalled: "It was the MTV EMAs in Milan. Ed was having a party in a massive hotel room. I don't know if Mr. Bieber knew who I was, but Ed introduced me anyway saying I'd got the biggest album in the UK at the moment. Justin was cool - a nice, charming little lad."