PEEVED Kelly Ripa is squaring off with Rosie O’Donnell as a vicious feud flares between the two talk show stars, who are at each other’s throats — and hurling catty slurs and insults!

Surprisingly, American Idol legend Clay Aiken is caught in the middle of the wild war of words between the women!

Insiders say Kelly is still smarting and carrying a grudge against motor-mouthed Rosie — who is a lesbian — for labeling her a “homophobe” more than a decade ago, in a comment that Ripa calls “downright outrageous.”

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