Are the Lachey Brothers “Smarter Than A 5th Grader?” The world will soon find out….Crooning siblings Nick Lachey and Drew Lachey will be battling it for charity on back-to-back on Are You Smarter Than a 5th Grader? this Tuesday, NickFanatic.com reports.

Nick — who’s celebrating a birthday today — and his younger brother Drew will test their knowledge of grammar school education in a new half-hour version of the hit FOX series. And as always, a classroom of real 5th graders will be on hand to help the guys when they need it.

Nick and Drew Lachey stop by Are You Smarter Than A 5th Grader? Tues., Nov. 10 @ 8 and 8:30PM ET/PT on MyNetworkTV.