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Noah Cyrus Unfamiliar With 'The Rachel' Haircut, Makes Miley Feel Old

"Ancient," to be exact. :(

Well, we're officially over the hill, folks. This weekend, Sky Ferreira posted a photo of her new layered haircut with the caption "THE RACHEL IS REAL," and as it turns out, the seemingly obvious Friends hair reference wasn't, um, as obvious as we thought.

To all of us olds, Sky's new ’do was obviously referring to Jennifer Aniston's Rachel Green's infamous layered bob (which to this day, is still the most requested haircut OF ALL TIME), but when Sky tagged Miley and Noah Cyrus in the photo, it seems that Miley's 14-year-old sister had no idea what it meant.

Miley posted a screenshot of Noah asking, "Who is Rachel?" after peeping Sky's pic, and Miley responded with "@skyferreira we are ancient #therachel." The kicker? Miley is only 21. *sobs uncontrollably*

Sky also reposted Noah's response with the caption "Call me grandma," which, apparently, means that everyone over 22 is a crypt-keeper. Bye forevs, y'all.