Kate Hudson says Alex Rodriguez is a "nice" guy.

The 30-year-old actress - who stars in the new musical movie 'Nine' - is still refusing to disclose any details about her relationship with the American baseball player, nicknamed A-Rod, despite being photographed with him on numerous occasions over the summer.

Kate, who appeared on the 'Late Show' with host David Letterman, was asked if she was a big Yankees fan and friend with Alex Rodriguez, to which she giggled and said: "Yeah, he's a friend of mine. Nice guy."

When the Hollywood actress was asked how they'd met she tried to change the conversation but finally caved in when she was asked if he was a nice guy.

She said: "Yeah, he's a nice guy. You just can't help yourself! You just can't! I knew it was going to come at some point!"

She also said she'd had a "really fun" summer.

Kate recently spoke about how she gets frustrated with the constant speculation over her private life.

She said: "I can't go two months without being pregnant, engaged, or breaking up because I'm too needy, which is always the one they love.

"I'm not needy. You kind of have to laugh it off, but it can kind of screw up other things around it."