I went to a small high school. Our athletics program sucked, but we were known for our fine arts. Because we were small, I pretty much did everything: band, vocal, drama, speech, some athletics, etc...
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It's gonna be a hootenanny.
Or maybe a jamboree.
Or possibly even a shindig or lollapalooza.
Perhaps it'll be a hootshinpaloozaree. I don't know.