Tennis legend Serena Williams crip walking to Kendrick Lamar’s Grammy-winning diss track “Not Like Us” was a highlight of this year’s Super Bowl halftime show…which is now the most-watched of all time. Fans and critics still have a lot to say about the controversial dance – it’s a move closely aligned with gang life in greater L.A. But some observers say that meaning has transformed. LAist’s Dana Littlefield has been exploring the history of the dance and its role as a form of activism.