BOS5 S&C, their hummingbirds and their orchestra, "Summer Breeze". Ahhhhh...
Last chance to play that one in context, eh? Isleys did it even better, but I do love the wood blocks and other percussive effects on the original.
There's a local band somewhat reminiscent of the DMB that I've suggested do a cover of this, with the hook played on alto sax and numerous vocal tradeoffs in the verses (including females doing the "sweet days of summer, the jasmine's in bloom / July is dressed up and playing a tune" as was done in Joe Cocker's "Help From My Friends"). They've not taken me up on the idea, alas.