Lady Gaga is suffering from jet lag which she's compared to an experience with "bad shrooms".

The singer is currently in Korea preparing for her upcoming world concert, the Born This Way Ball.

Gaga has joked that the constant travelling is wreaking havoc with her sense of perception. The quirky songstress has compared her fatigue to taking magic mushroom drugs.

"Jet lag last night was like bad shrooms. When my dad asked what that meant I told him its like being in a musical you don't want to be in (sic)," she quipped on her Twitter page.

Gaga also updated her fans on what to expect from her upcoming tour. The 26-year-old star is overjoyed at the backdrop that's been made to accompany her stage performances.

"So happy! The Stage is more than I could dream for, time to kill the dance floor. Off to rehearsal (sic)" she wrote, with an accompanying picture of her seemingly travelling in a car.

Gaga has also tweeted about her determination to deliver a breath-taking string of concerts. The star promised her fans that the Born This Way Ball tour will be the best concert she has ever performed.

"I will perform the tour of your life if it f**king kills me (sic)" she wrote.

Gaga's Born This Way Ball global series of shows begins on April 27 in Seoul before making its way to Europe.