She then joked of her talk show outfit, "Had I had this beautiful sweater ... I would have worn that on the cover of 'Lotus.'"
Host Ellen DeGeneres also asked the "Your Body" singer about her Oct. 3 meeting with U.S. Secretary of State Hillary Clinton. (Aguilera was given the McGovern Award for her quest to fight global hunger.) "Let's talk about this next picture of Hillary checking you out," the 54-year-old laughed.
"That looks like it was Photoshopped, but it's not. It was a real moment," said Aguilera, who celebrates her 32nd birthday on Dec. 18.
"She's such a force in a room. She's got that star charisma and everything about her. I couldn't take my eyes off her either, so it was mutual," "The Voice" mentor responded. "Is that bad? I don't know. Maybe I shouldn't say that! I'm so inappropriate."