New "American Idol" judge Ellen DeGeneres talked to "Extra" for her first TV interview since the big announcement -- and she says she's putting some space between her and Simon Cowell!
"I'm putting a sneeze guard up between us," she joked. "I'm gonna have Plexiglas surrounding me."
But don't mess with Ellen -- "I'm not the kind of person he's gonna be pinching, playing with; drawing mustaches on," she said.
Ellen said joining judges Randy Jackson, Kara DioGuardi and Simon is like "joining a family." In fact, all three judges were asked if they "liked" the funny gal -- "because it would be rude to shove someone in there they didn't like," she quipped.
For more on Ellen's interview with "Extra," tune in tomorrow, Friday Sept. 11!