A shocking television documentary is to reveal that J. Lo, contrary to her claims for street cred, is not really Jenny From The Block after all. Behind The Behind is an investigation into the singer's childhood, and has uncovered her upbringing was far from the 'street' existence she claimed she had in New York's tough Bronx area. Jennifer Lopez in fact comes from a posh suburb and had a private education. 'She's another Hollywood star who's forgotten where she comes from,' says family friend Henry Palayo. 'She's very artificial - more artificial than a plastic nose.' You can compare her to a false snout but it doesn't mean Jen didn't work hard to get where she is today. The documentary discloses that the Lo's naked ambition emerged age 17, when she dated dance teacher Des Caulderone. 33-year-old Des then gave her the 'free' dance lessons which catapulted her onto the path to superstardom. A bitter Des tells the programme-makers how he simply could not match her mettle. 'When you're emotional you expect people to connect with you on that level,' spits Des, 'but she was like, "What's your problem, dude?"'