Sing off

NBC "The Sing-Off" has become a guilty pleasure in the Daily News (the semifinals tonight at 8). And despite the judge Shawn Stockman of Boyz II Men is a local boy, Judge Ben Folds "Lonely Avenue" is one of the best albums of the year, and one of our Heads of Human Resources is obsessed with host Nick Lachey , Tattle decided to get the scoop on Nicole Scherzinger judge program. Why? he was a winner of TV talent shows in "Popstars" as a member of Eden's Crush, got freaky as lead singer of the Pussycat Dolls came out with a racing driver, has a role in the upcoming "Men in Black 3" (Will Smith) was the winner of the mirror-ball on "Dancing with the Stars" and, well, just because (see photo).