Associated Press: Inauguration Day? Nope. First puppy? Negative. Triumphal tour of Europe? Not even. First lady Michelle Obama called her appearance Tuesday on "Sesame Street" probably the best thing she's done since arriving in the White House.

At the U.S. Mission to the United Nations, she thanked the diplomats and staff members promoting her husband's new foreign policy of global engagement.

"I'm thrilled to be here, but I was just at 'Sesame Street' -- I'm sorry," she said. "And I never thought I'd be on 'Sesame Street' with Elmo and Big Bird and I was thrilled. I'm still thrilled. I'm on a high."

"I think it's probably the best thing I've done so far in the White House. But we were there talking about nutrition and healthy eating, and it's just been a thrill," Mrs. Obama said.

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