When did calypso music become popular in the U.S.?
Calypso music
It is thought that the name "calypso" was originally "kaiso" which is now believed to come from Efik "ka isu" ("go on!") and Ibibio "kaa iso" ("continue, go on"), used in urging someone on or in backing a contestant.[2] There is also a Trinidadian term "cariso" that means "old-time" calypsos.[3]  The term "calypso" is recorded from the 1930s onwards. Alternatively, the insert for The Rough Guide to Calypso and Soca (published by World Music Network) favours John Cowley's arguments in Carnival, Canboulay and Calypso: Traditions in the Making, that the word might be a corruption of the French carrouseaux and through the process of patois and Anglicization became caliso and then finally "calypso"; however, Cowley also notes that the first mention of the word "calypso" is given in a description of a dance in 1882 by Abbé Masse.[4]