These twin boys give a whole new meaning to the term bouncing babies.
The adorable nine month-olds get into the groove in their Jolly Jumpers to Johnny Cash's signature song "Folsom Prison Blues" in this hilarious clip posted on YouTube.
The boys - called Reece and Levi (not Sue!) - have been viewed more than 500,000 times in just a few days.
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Their parents wrote: "A HUGE thanks to each and everyone of you that have watched our video!
"The response is overwhelming! It is a humbling feeling all the beautiful comments we have received & knowing Reece & Levi have made so many people smile! We are very VERY proud parents!"
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