This duet is (I think) called “Funny Cat’s Duet” or “Duetto Buffo di due Gatti” in Italian, and was probably written by Rossini.
Love how the boy in the brown hair at the front is trying not to laugh during the entire performance. What a caterwaul.
Siobhan is a freelance writer, research addict and lover of twisted history. If you like horrible but amazing history, check out her website www.interesly.com or Facebook page https://www.facebook.com/interesly. Or you can reach her through www.siobhanoshea.com.