Sigma Boy is a Russian pop song by Betsy and Maria Yankovskaya that became a global TikTok hit in late 2024, spreading through dance videos, edits and meme clips built around its catchy chorus. The term sigma, borrowed from internet slang for a lone, confident archetype, helped the track travel far beyond its original audience. Bass boosted versions like this one followed as fans remixed the song for louder, more exaggerated meme edits, and the clip remains popular for short form videos that want instant recognition and high energy.