Trolololo comes from Soviet singer Eduard Khil's 1976 performance of 'I Am Very Glad, as I'm Finally Returning Back Home,' a song whose wordless vocal section replaced the original lyrics. The clip resurfaced online in 2009 and became a global viral meme in 2010, spreading through reaction videos, remixes, and television segments that introduced Khil to a new audience as the Trololo Man. Its cheerful absurdity kept it circulating long after the first viral wave, and creators still use it today as shorthand for playful trolling.