Michelle Obama has often been praised for her super toned arms ... now we know how she gets them!

The First Lady visited "The Ellen DeGeneres Show" where she accepted a push-up challenge from the talk show host. Jackets were shed and the two women hit the stage. Watch what happens below:

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Michelle bested Ellen by five push-ups and wasn't even out of breath by the end. To be fair, Michelle is six years younger than Ellen. It was definitely an impressive showing by both! The First Lady has been on a tour promoting healthy eating, and she's living proof!

Be sure to tune in to "The Ellen DeGeneres Show" Thursday to see Michelle Obama's full interview with Ellen DeGeneres and learn if President Barack Obama picks up his own socks!