Sean 'Diddy' Combs imagines he still has more to offer the world of showbiz, even as he sits in a Brooklyn jail awaiting sentencing for prostitution-related convictions.

The 55-year-old rapper and music mogul, whose lawyer says he's "more determined than ever" to rebuild his public image, has sparked disbelief in the industry with the statement, RadarOnline.com can reveal. Article continues below advertisement

'Totally Deluded'

"He genuinely thinks he's coming back stronger," a source told us. "But no one with a decent reputation wants anything to do with him now. He is totally deluded if he thinks he is going to stroll out of jail and back into the recording studios and boardrooms he once dominated.

"Not one big-name producer in the industry will want to work with him, and no

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