Adele's second album 21 is set to become of the bestselling and most acclaimed of this year, and she's moved audiences to tears with soul-searing renditions of songs like "Someone Like You," but the British soul superstar still battles major stage fright.

"I puke quite a lot before going on stage," Adele, 22, tells British Vogue in its October issue -- gracing its cover with a stunning closeup shot. "Though never actually on stage," the Grammy winner clarifies. But the pre-show puke guarantees a great performance, she says.

"But then, I sh*t myself before everything...The bigger the freak-out, the more I enjoy the show!"

One thing the curvy star doesn't get caught up in: Hollywood's obsession with diets and getting thing. "I've seen people where it rules their lives, who want to be thinner or have bigger boobs, and how it wears them down," she tells Vogue. "And I don't want that in my life...I have [body] insecurities, of course, but I don’t hang out with anyone who points them out to me."

Right now, British star is single. "I do get massively distracted when I've got someone in my life, which I can't afford to do right now," she explains. "Besides, no one treats me as well as I do."

But, one day, if the right guy comes along, she's not opposed to becoming a mom -- to little boys, that is.

"I've always got on better with boys. Most of my friends are boys," Adele admits. "Like, if I have children, I want five boys. Boys love their mothers whereas girls can be so mean to each other."

The October issue of British Vogue hits stands on Thursday.