KATY Perry revealed the less glam side to showbusiness in a backstage video which showed her having a very speedy costume change.

No less than four assistants helped the singer out of her skin tight leather body suit in a break between songs at a recent gig.

She told the camera: “This is what popstars do when you think it’s all just smoke and dope and hanging out backstage waiting to come on

“She works really hard for her money.”

Katy held on to a metal bar in her changing room as the assistants fastened the tight outfit consisting of a tight leather top and frilled skirt.

She added: “This is a NASCAR pit-stop, for changing costumes.”

The star swapped outfits several times during her Paris gig on Tuesday.

The video then shows the star being hurried onto stage for her performance.

Her friend Derek joked to the camera: “FYI she basically hands on this while they change her like a dangling baby.”

Katy is currently in the midst of her Witness world tour which ends this August.

She is having to juggle her relationship with Orlando Bloom who she is officially back together with.

She recently confirmed she is “very happy” with the Lord Of the Rings singer.