will.i.am "chased" Johnny Depp through a building.

The Black Eyed Peas star is a huge fan of the 'Pirates Of The Caribbean' actor and was determined to get his picture taken with the Hollywood hunk when they were both at a recent event.

He said: "Who do I get star struck over? Johnny Depp. I chased that dude around the building.

"We were backstage at this year's Nickelodeon Kids' Choice Awards and he'd just finished presenting and somebody sad, 'Johnny Depp just walked in.' And I was like, Where did Johnny Depp go?'

"So I found him and took a picture of him. I'm a big fan, I'm wowed by him. He's a respectful artist and never caught up in bulls**t drama. He's not Hollywood. He's like us."

As well as being in awe of Johnny, will.i.am is also a big fan of U2 and was thrilled when he got the chance to work with them.

Asked how he chooses who to work with, he told LOOK magazine: I don't know. Time. Whenever a slot opens.

"Even though I didn't get paid I worked with U2. I still got paid - with inspiration."