Wow. This is a great example of why Sesame Street is the best children's show there has ever been. I grew up watching it, my nephews love it, and there is no doubt that my own kids will watch it while they sit counting their cheeries. Lucky kids these days, that get to count along with Leslie Feist.
Also, here is a list of celebs that have made apperances on the show in just the past season: Jessica Alba, Will Arnett, David Beckham, Jack Black, Kim Cattrall, Lorena and Lorna Feijoo, Leslie Feist, Neil Patrick Harris, Jonah Hill, Randy Jackson, Heidi Klum, LL Cool J, Jenny McCarthy, Megan Mullally, Sandra Oh, Mike Rowe, Jason Taylor, Tilly and the Wall, Patrick Warburton, Brian Williams, Chandra Wilson.
GO here to watch James Blunt sing about his love for triangles. Love it!
[Feist video via asimko]