“American Idol” runner-up KATHERINE MCPHEE smoulders her way through a GQ celebrity photo shoot, making us wonder just how she’ll come across in her new television series on NBC, “Smash.”

katherine mcphee smash gq photo shoot

We’ve never really pegged Katherine as that type of femme fatale who can tempt you into her boudoir in a series of slow, sensual poses and stretches, without ever really looking you full in the face. But here she is pulling out her own version of the teasing coquette in a promotional inside spread for her new TV role…