The Trololo song comes from Soviet singer Eduard Khil's 1976 television performance of the vocal piece “I Am Glad, Because I'm Finally Returning Back Home.” The clip resurfaced online in 2009, when its wordless delivery and Khil's expressive smile turned it into a major viral meme. It spread through early social platforms, remix videos and reaction edits, and it is still used because the melody is instantly recognizable and carries a very specific awkward, cheerful internet nostalgia.