Will Ferrell as Buddy the Elf in 'Elf.'
Photo: Warner Bros.
This year, celebrities contributed an immeasurable gift to the greater good by making it acceptable to wear baby pajamas in public. Often long-legged, lined with fleece and sometimes in the form of an adorable animal, the onesie has been embraced by everyone from Justin Bieber to Beyonce. Hey, grown women deserve to be cozy and cute, too! Yet despite their growing popularity in 2013, we're pretttty sure that a few classic Christmas movies (like Elf, for example) ~actually~ tried to make onesies happen YEARS ago. But alas, no one paid attention—until now. Thanks for your help, celebrities! We'd definitely consider this a Christmas miracle.