But Will told Newsround that after the tour they will be doing their own thing.
And he joked about Gareth: "He's unbearable! I've said this time and time again but people think I'm joking! The man is unbearable!"
On a more serious note he said: "I think that after the tour we will go our separate ways.
"My album's coming out, his album will come out in the future. It's a nice parting - a friendly farewell!"