'Smelly cat, smeeeellly cat, it's not you faaaauuuult!' Who hasn't absent-mindedly sung this in the shower after one too many Friends episodes?
We're talking of course, of Phoebe Buffay's (aka Lisa Kudrow) iconic, er, hit which she played on the show and was stolen by her former best friend for a kitty litter ad. Which made total sense if you ask us (the litter ad, not the theft).
Well even though the show ended over a decade ago, Phoebe gave us one last rendition of it, alongside Taylor Swift of course.
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The singer asked her to join her on stage during her 1989 world tour, and ever the pro, Lisa was in full character, complete with floaty skirt.
She even gave her a few pointers to nail the song, including, 'That’s good, but you have to really feel the lyrics.'
Naturally, everyone went into meltdown, as you'll see by the video below: