Getting in tip top shape as she readies for her walk down the aisle, Katy Perry was spotted out at the gym with her personal trainer Harley Pasternak in West Hollywood on Monday. Clad in a black spandex suit with a blue LA Dodgers ballcap, the "Hot N Cold" singer kept her head down as she walked past awaiting paparazzi following the morning sweat session.

Meanwhile, as Miss Perry prepares to marry Russell Brand in India later this year, recent rumors tell that she's turned to smoking to deal with the stresses of wedding planning. According to a source of The Mirror, Katy told a friend: "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. So I'm thinking I am going to have hypnotherapy to help me get over it. I'd never say to kids, 'This is cool'. It's a really bad habit that I need to quit."