Singer Katy Perry is considering undergoing hypnotherapy in a bid to get rid of her smoking habit.

"I'm stressed out with the wedding and I keep smoking to calm my nerves. I do it even though I know it is really bad for me and I know I need to stop," femalefirst quoted her as saying.

"So I'm thinking I am going to have hypnotherapy to help me get over it. It's a really bad habit that I need to quit," she added.