I am Groot… ing for this Saturday Night Live host.

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Parks and Recreation cut-up Chris Pratt, who this summer fronted the blockbuster film Guardians of the Galaxy, has been tapped to Star-Lord over the NBC sketch series’ Season 40 premiere, airing Sept. 27.

Pop “it girl” Ariana Grande will serve as musical guest.

Then on Oct. 4, funny lady Sarah Silverman will make her own debut as SNL host, with musical guest Maroon 5.

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Among SNL‘s Season 40 changes, one-and-done players Brooks Wheelan, Nöel Wells and John Milhiser aren’t returning, UCB grad/Incognito web series creator Alison Rich has joined the writering staff, and the show is expected to in some way pay tribute to longtime announcer Don Pardo, who passed away last month.