Kristen Stewart has revealed she was left feeling like a wall flower hanging out with Firework singer Katy Perry.

The Twilight star - who likes to keep a low profile in public with boyfriend Robert Patinson - told US show Jimmy Kimmel Live how the singer went out of her way to draw attention to herself at Coachella festival last month.

Kristen said: "I have a buddy who has absolutely no qualms being in front of millions of people. I was with Katy Perry. I walked behind her through the entire crowd. She wanted to sit up front. She's like, 'Hey, you want to go watch the Tupac stuff?' I was like, 'Yeah!'

"Suddenly I was like, 'What are you doing to me? Ah!' We were like Moses parting the waves of Coachella getting to the front.

"I was her entourage. I was leading her entourage."

Katy was pictured in the crowd kissing new boyfriend, Florence + The Machine guitarist Robert Ackroyd.

But the 27-year-old singer recently moaned: "I'm tired of being famous. Fame is just a disgusting by-product of what I do."