United Kingdom, Feb. 5 -- Justin Timberlake is reportedly thinking of doing a tell-all interview with Oprah Winfrey in the wake of his feud with his ex Britney Spears.

The former *NSYNC member, 42, was accused of mocking the 'Toxic' singer, 42, last week at his birthday concert when he said he had no one to apologise to before he launched into his track 'Cry Me a River', said to be about Britney cheating on him when they were together.

A source has now told The Sun about how he wants to use a chat with Oprah, 70, to publicly address the fallout of his fresh spat with the singer: "Justin is really not happy how things have gone down. He wanted the music to speak for itself but that's clearly not happening.

"His comments on stage have on...