Adele wishes she had the "nerve" to tour more.
The 'Hello' hitmaker is afraid to commit herself to playing too many gigs because she gets anxious on stage and also because of her fear of having to cancel if her past vocal health issues return.
She said: "I always wish I had the nerve to do a few more things. I would love to tour, I really would."
The 27-year-old singer recalled going to Glastonbury to see Kanye West earlier this year and the size of the crowd made her freeze with "fear".
Speaking to Zane Lowe for Beats 1 Radio, she said: "I went to Glastonbury to watch Kanye.
"It was the biggest crowd I've ever seen. I froze of fear."
The 'Rolling In The Deep' singer - who has three-year-old son Angelo with partner Simon Konecki - also admitted that before she had her son, she had no inspiration to make an album.
She said: "My kid makes me proud of myself.
"I had no ambition before this album. I was never reaching for anything. Then when I had my kid ... I want to show him what I manage to pull off."