Serú Girán was an Argentine rock band fronted by Charly García, one of the most influential figures in Argentine rock, and the band remains a cultural reference point in Argentina decades after the band first rose to fame in the late 1970s. The phrase buen dato is common Argentine slang for a good tip or useful piece of information, which helps explain why this clip works so well as a reaction sound. Shared in chats and short videos, it has become a shorthand way for Argentine creators to acknowledge a clever fact without a lengthy reply.