Actor, producer and writer Ken Jeong got his big break when he was cast in the hit comedy film The Hangover. He's gotten great roles ever since. The lead in the ABC sitcom Dr. Ken, he currently appears as a panelist on The Masked Singer, a wacky show that features celebrities performing in disguise. He provides color commentary as he tries to guess who's behind the mask. Jeong brings his standup show to MGM Northfield Park – Center Stage tonight at 8. Tickets cost $39 to $69. (Niesel)