Justin: Madonna is specific to work with

Justin Timberlake has finally revealed some gory details about what it was like to work with Madonna on their hit single 4 Minutes.

The 27-year-old SexyBack singer said that the queen of pop was a stickler for detail and very particular about what she wanted.

But Justin said that Madonna's dominating personality almost meant that they clashed during the project.

He told Heat mag: "Madonna is definitely specific about what she wants and I can't knock her for that. I respond to that because I'm that way, too. But I also think that it took us just a second to mesh our style.

"We're both strong personalities, some of us stronger than others and I didn't know it at the time."

The singer, who has starred in movies Alpha Dog and Black Snake Moan as well as providing the voice of Artie in Shrek the Third, added that he would like to be a "two sport athlete" who enjoyed making both music and films.