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Trijntje Oosterhuis and Ieniemienie.
Trijntje Oosterhuis (b. 1973) is a Dutch singer.
Together with Ieniemienie, Oosterhuis sang "Zeg, zal ik je eens even wat vertellen?" for the Sesamstraat Kerstspecial 2009. This song also aired in a normal episode on November 27. (YouTube)
Oosterhuis has released two albums with Burt Bacharach, performed with Lionel Richie, and released an album of Stevie Wonder covers. In December 2009 she also released an album of Michael Jackson songs, including some rare songs and ballads.
As of 2012 she's one of the coaches of Dutch singing competition show The Voice of Holland.