Backstage Clarkson chatted with Entertainment Tonight's Nancy O'Dell and revealed that in addition to singing at her wedding, Blake Shelton will be marrying her.

"He's not only singing, he's marrying us," she said. "He's done it before with people. He's actually marrying Ashley Monroe from the Pistol Annies as well."

While it's sometimes hard to believe Shelton has a serious side to him, Clarkson said this is in fact the case, and what we all see on Twitter is just his drunken persona.