Baruch atah adonai eloheinu melech haolam, shehechiyanu vekiyemanu vehigiyanu lazman hazeh.
בָּרוּךְ אַתָּה יי אֱלֹהֵינוּ מֶלֶךְ הָעוֹלָם, שֶׁהֶחֱיָנוּ וְקִיְּמָנוּ וְהִגִיעָנוּ לַזְּמַן הַזֶּה.
Blessed are you, Adonai, our God, King of the Universe, who has provided us with life, and sustained us, and brought us to this moment. (User-contributed translation)
Blessing during a momentous time, such as a new beginning or an important ending. Also said during each holiday, or when eating a new food.
Tzivika Pik version in video below from Shiron L'noar: Jewish Songs for Children Ages 10 - 13
Video version below: Cantor's Yanky Lemmer and Pinchas Cohen singing Shehecheyanu at a Chanukah Concert in Manhattan Beach Jewish Center in Brooklyn, NY Motzei Shabbos, December 4th, 2010 Accompanied by Maestro Israel Edelson