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"A capella darlings and The Sing-Off alums Pentatonix have packed up their impressive pipes and headed down to Sesame Street.\nIn the episode airing Feb. 7, the quintet guides youngsters through counting up to five with a bouncy, happy song fueled by their perfectly layered vocals. \nSee also: Composer Creates Stunning Piece of Music Using Only a Bicycle\nAnd the group is clearly excited to make their debut on the famed street. Their official YouTube channel released a bonus video of the members prepping for their dream come true with a medley of a couple Sesame classics, including \"C is for Cookie\" and \"Rubber Ducky.\"\nTake a look and be sure to tune in. \n\nHave something to add to this story? Share it in the comments."^^<http://www.w3.org/2001/XMLSchema#string>
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