American singer Kesha had to stop rolling around in beer and glitter because it "irritated" her skin.

The “Tik Tok” hitmaker has confessed she can no longer go on stage covered head to toe in sparkles, because the beer, which she used as an adhesive to help the glitter stick, used to aggravate her skin issues, reports femalefirst.co.uk.

Speaking about her biggest beauty mistakes, the singer said: "I look back lovingly because I was having so much fun (with hair and makeup). There was a time I went on the red carpet with a Mohawk, but I’ll probably never do that again.

"And before I went on stage I used to pour beer on my body then roll in a bathtub full of glitter. I don’t do that anymore because it irritated my skin."

The 28-year-old, who is known for her outrageous outfits and heavy makeup, recently toned down her look, shunning her over the top costumes and opting to show off her natural complexion.