It seems Sonam Kapoor is aiming for size zero. The already slim actress has now joined Bikram Yoga classes, where she is expected to sweat it out and burn oodles of calories.

"Starting bikram yoga today or as everyone calls it hot yoga. It's my dads secret for looking fab. (sic), " Sonam posted on her Twitter page.

Bikram Yoga is a distinct style developed by yoga guru Bikram Choudhury who holds a US copyright on his yoga that comprises 26 'asanas' or postures and two breathing exercises.

In the West, celebrities like Madonna, Brooke Shields and Raquel Welch practice it.

Sonam, who was lost almost 30 kg before she made her film debut with Sanjay Leela Bhansali's "Saawariya" in 2007, also loves munching.

"Can someone find the special k bars in mumbai please! I like the chocolatey drizzle special k bars.. Anyone i know where I can find them in mumbai, " she asked her Twitter followers.