Given it's the end of term (sort of) and the school education of children seems to have been abandoned for the time being, it could only be this Glam Rock monster from 1972 courtesy of Alice Cooper.
"Strange old man, shall I go with you? Will you turn your hurdy-gurdy to my songs?" Franz Schubert's Hurdy-Gurdy Man
There are lots of reasons to play Summertime and lots of versions (check out the original by Abbie MItchell as well as Ella Fitzgerald and Louis Armstrong's) but how about Sam Cooke?