Singer-songwriter John Mayer has revealed that following throat surgery his voice is very different and it's taking a lot of getting used to.

The 'Clarity' sensation has only done one public performance, which was at a benefit for firemen in Bozeman, Montana, since the two operations he had on his vocal cords last year (2012) and explained to Rolling Stone magazine that it's like beginning all over again:

"Everything changed about my voice. I don't have the projection. My laugh changed. The way I used to laugh is kind of like that ‘I'm embarrassed,’ high-pitched laugh. I don't really laugh that way anymore. I've found new ways around everything – new ways to talk, new ways to laugh. Now I wonder if I can go right back to the shape of my voice that I had when I was singing once I can do what I want to do with it."

In the same interview, he opened up about his relationship with Katy Perry and while he was wary of making specific remarks, he did confess: "It's been...I mean, I'm quite happy. I'm happy in all aspects of my life. I'm very happy in all aspects of my life."

Watch Mayer's first live performance since his surgeries below: