If you’re going to see comedian John Witherspoon tonight at the Improv, you better dress up because “you got to coordinate,” as he puts it. That catchphrase is just one of the comedian’s many one-liners and various accomplishments throughout his long career. He’s worked alongside famous comedians such as Ice Cube, Adam Sandler, Eddie Murphy and Chris Tucker and starred as “Pops” on The Wayans Bros. But he might be best known for voicing “Granddad” on the animated series The Boondocks. His standup is even similar to the Boondocks character he portrays; it features fast-paced jokes that keep coming at you. Witherspoon has a look about him that’s simply funny. He doesn’t even need to tell jokes because his facial expressions can make anyone laugh all night. He performs tonight at 7:30 and 10:15 and is at the club through Sunday. Tickets are $25. (William Hoffman)