21 Savage is set to tell his story in an upcoming biopic called "American Dream: The 21 Savage Story," and the trailer that dropped on Monday (January 8) shows none other than Donald Glover, aka Childish Gambino, portraying the "Runnin'" rapper. 

The trailer features new music from 21 Savage and features Stranger Things star Caleb McLaughlin playing a younger version of the rapper. McLaughlin can be seen being bullied in one scene by comedian and social media star Druski. 

Later, an older version of 21 Savage, played by Glover, can be seen in the infamous episode of  ESPN's Highly Questionable. The trailer ends with 21 coming up with his stage name, which you can watch in full above. 

Source: YouTube