Neil Patrick Harris and Celine Dion may be dealing with multiple bundles of joy for the first time, but there's a whole crop of Hollywood twins that have been walking and talking for awhile! Do you know how old these famous twin toddlers are now? Take this quiz on famous twosomes!
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How old are the Jolie-Pitt twins?
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Jennifer Lopez's lil ones just celebrated a birthday. How old are they?
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What year were Julia Roberts's twins born?
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Lisa Marie Presley's oldest daughter is 19; how old are her youngest children, twins Finley and Harper?
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Marcia Cross's twins also just celebrated a birthday in February. How old are they?
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