The 'Crank That Soulja Boy' meme stems from the 2007 breakout single by rapper Soulja Boy Tell 'Em, which became one of the first truly viral internet dance sensations. Accompanied by a distinct instructional dance, the track's signature 'YOUUUUUU' shout and steel drum beat became synonymous with early YouTube culture. In the years since, the meme has evolved from simple dance recreations into ironic image macros and video edits that celebrate 2000s nostalgia or depict characters performing the iconic 'Superman' move. It remains a staple of internet history, frequently used to signal a triumphant moment or a sudden, energetic entrance into a situation.