What do you get when you cross a grime MC with a Sloane Ranger children’s entertainer? An incredibly entertaining show, as it happens. Ed MacArthur and Kiell Smith-Bynoe star as the eponymous Mr String and MC SPITTA, an archetypal odd couple who inhabit utterly opposite worlds, forced to come together to perform at the birthday party of a Russian oligarch’s daughter.

Both actors inhabit their characters perfectly, and there are some almost touching moments as they share their polarised points of view with each other. But don’t let that distract from the glorious silliness of this show. String V SPITTA consists of a smorgasbord of songs, magic, improv and bubble machines, just as any good children’s show should. There’s audience participation aplenty, including one moment where a slightly sheepish ‘volunteer’ is encouraged to improvise grime lyrics to hilarious effect.

The jokes are genuinely funny and don’t rely too heavily on the children’s-show-for-adults juxtaposition. At points, it even brushes with the political, before returning to the daftness at hand. The hour is slightly rough around its edges and there was the occasional unaddressed tech issue, but both performers are clearly having so much fun on stage that it’s very easy to look past that. String V SPITTA is pure, unadulterated silliness, and it’s all the better for it. 

String V SPITTA, Pleasance Courtyard, until 26 August, 8pm.