Ed Sheeran says he will commemorate his trio of sold-out shows at Wembley Stadium by having his chest tattooed.

"Originally I was going to get the floor plan tattooed on my side, but that seemed a bit ridiculous," he told the BBC before his opening night show. Instead, he chose a lion, representing the England football team's logo. "It's going to hurt," the singer said. The star already has dozens of tattoos, from a ketchup bottle to a teddy bear, each marking career high point. The 24-year-old will become the first artist to headline Wembley unaccompanied, taking to the stage with just his guitar.

"I don't know any different," he said. "I've never done anything but this at my live shows. I'm in control. Everything is in my hands." The star's hat-trick of shows coincides with his second album, X, returning to number one for a fourth time.

The record, which has sold more than two million copies in the UK, has not left the top 10 since its release last June. He spoke to the BBC's entertainment correspondent Colin Paterson at Wembley Stadium about his achievements. One man, one guitar, three nights at Wembley Stadium. That's a bold statement.

It's a good statement, yeah. I feel like the press, the media, the music industry - and some people in general - thought that the first album was a flash in the pan, so this is a statement to say that I'm going to be here for a while so sorry.

It was my idea. I felt like I'd done every venue on the ladder in England and this is the biggest. No! This was never an ambition because, as a singer song-writer, my ambition was the Shepherd's Bush Empire, which is like 1,500 people. I would never have had the balls to believe I could play a place like this. For me to be on such a small list of massive artists is very humbling and strange, you know?

There's probably about six artists or bands right now that can sell this is out. To be part of that is pretty nuts. You've got AC/DC, Foo Fighters, Coldplay, One Direction, Eminem, Muse, Take That. It's under 10. It's going to be pretty similar to a festival set. I feel like it's going to be very crowd-involved and epic. I'll try to have intimate moments, but I kind of just want to have the euphoric, anthemic feel.

The size of the venue doesn't make me feel nervous. What makes me nervous is that stuff like this [indicates his guitar pedals] can mess up. The whole gig relies on this. The microphone can switch off, a guitar string can break. But I'm confident enough that if everything goes right, the gig will be great.

Things mess up from time to time, and you just improvise. I have songs I can sing completely a capella, or you can just hold the guitar up to the microphone. You can make it work.