`The Bike Song` hitmaker said he thinks he`s getting too old to keep performing for too much longer and has hinted he will concentrate on producing records above other endeavours in the future.
He said: "I do try to focus on the music and not get caught up in all the other s**t, but... Well, I`m 35. I`m probably in the last five years of performing onstage.
"That`s the ideal. To do well enough that you just don`t worry about dipping out of the game for a year and having everyone forget you."
He also used Beatles producer George Martin as an example he`d like to live up to.
He added: "I mean George Martin wasn`t going around peddling his latest brand of polo shirt. He stayed in the studio and that`s why he has a brilliant legacy of music."
Mark - who admits he can be a little neurotic - also said he doesn`t feel like he was born to perform onstage.
He added: "I get nervous before I go on stage because I`m not a born performer. I only started playing guitar three years ago and I only started singing, like, yesterday. I do think I throw obstacles in my own
path, and ratchet up the neurosis that way. But there are worse problems to have, I think."