New York, Aug 3 : American rocker Billy Joel is reportedly keen to win his ex-wife Katie Lee back.

Sources have revealed that Joel is completely distraught over the June break-up, and he''s doing everything he can to win her back.

"Billy is obsessed with her" the New York Post quoted a friend as saying.

The couple split because Katie Lee -- a TV food critic and chef -- wanted to have kids and a family, but Joel did not.

Lee''s many nights out with designer Yigal Azrouel also irked Joel.

"Billy never wanted to go out with her. She wanted to have fun and promote herself, so she started hanging out with Yigal," said a source.

Insiders say that Joel now believes Azrouel and Katie Lee were never more than friends, and that he''s doing everything he can to win her back.

However, a friend of Katie Lee said, "They''re not getting back together. She is trying to move on." (ANI)