Pop songstress Ke$ha has revealed that collaborating with Will.i.Am on her song 'Crazy Kids' was a great experience because they got on really well.

During an interview with Sugarscape, the 'Die Young' superstar explained that they embodied the song's message with their behaviour and had a lot of fun together:

"Yeah, that song was so much fun to write because he's like a five-year-old and I'm like a five-year-old, so together it was just like really crazy, wild energy. He's hilarious, he's genius - I love him. The two of us together were like five-year-olds on speed running around together, up till 6am. It was fun."

Ke$ha also spoke about coping with 'haters' and confessed that there will always be critics so she makes sure she stays true to herself and keeps her head up:

"Honestly, I think people are gonna hate on me no matter what I do, so I can't really give a sh*t. I tell my fans to give the haters the finger so I have to lead by example. Sometimes people are really mean, but I just give them the finger and do what the fu*k I want."