Amanda Seyfried fully supports her Dear John co-star's title as People's 2012 Sexiest Man Alive, telling InStyle magazine that he's a "superstar."
"Channing was amazing," the actress, 27, recalled of working with the heartthrob (via The Huffington Post). "Everybody wants to have sex with him. And the only person he wants to have sex with is his wife, Jenna [Dewan-Tatum]. He's the most loyal husband."