Trololo comes from a 1976 performance by Soviet singer Eduard Khil of the vocal piece often identified as “I Am Glad, 'Cause I'm Finally Returning Back Home.” The clip spread widely online in 2009 after being rediscovered on YouTube, where its unusual wordless delivery made it easy to remix and share. It became one of the defining early internet music memes, alongside clips like the French meme song, and it still appears in retro meme edits because the melody is instantly recognizable.