The New York dailies are reporting this morning that so few Manhattanites have bought $20 tix to see Kevin Federline, aka "The Self-proclaimed Most-underrated Performer in Rap" in a Nov. 4 show at Webster Hall that "we may just cancel it," insiders at the venue tell the Post. Already, the rapper's Cleveland show has been nixed due to lack of interest. The rest of the tour stops, cross your fingers!