Britney Spears will present the Top Ten List on the Late Show With David Letterman tonight (11:35 PM-12:37 AM, ET/PT).
It marks her first appearance on the broadcast since a surprise cameo appearance Nov. 6, 2006 - two months after her second son Jayden was born.
"Thank you so much," she said on the show. "I'm in town, and I'm just such a huge fan. I had to stop by."
"That's very nice of you to say," said Letterman. "That means so much to me."
Spears shot back: "Uh, no, I wasn't talking about you. I was talking about Will Ferrell."
Spears is currently in the middle of Circus tour.
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