Treehouse Masters Season 9 Episode 9 Grace VanderWaal's Got Treehouse 2017
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When asked in 2016 what she would do with her winnings, ``America's Got Talent'' Season 11 winner Grace Vanderwaal said she wanted a tree house built by Pete Nelson; the 13-year-old singer-songwriter's wish comes true.
- Released: 2017-09-15
- Runtime: 60 minutes
- Genre: Documentary, Reality
- Stars: Pete Nelson
- Director: Chris Ihlenfeldt
