The British star, who has performed on the ITV singing show twice, says he made a conscious decision not to audition as he wanted to be known for his own songs.
"The minute I started writing music, I knew that none of that stuff was going to be for me. I want people judging me on my voice and my songs - that's what's important to me.
"You're singing other people's music, so then when you release your own stuff, people might not like it."
The ‘Stay With Me’ singer also revealed that he didn't get to meet the judges when he performed on the show.
He said: "I didn't like that I didn't get to meet Simon and Cheryl.
"I would have thought they would come and say hello, or I'd have got to go and say hello. But I never got to see them."
It will mark the first time he has performed at the Brits, having been the recipient of the Critics’ Choice award last year, shortly before the release of his number one album ‘In The Lonely Hour’.
Also confirmed to perform are Ed Sheeran and Taylor Swift.