Nearly every Generation X and Millennial kid grew up watching Friends. Even if you’re not a fan of the world famous show, you’ve probably heard the ridiculous song Phoebe created called Smelly Cat. The song was terrible and Lisa Kudrow doesn’t really have the best voice, but that was all apart of the joke. So it’s no surprise the Internet is freaking out since Taylor Swift invited Lisa Kudrow on stage during her concert at the Staples Center and the two performed the nostalgic 90’s song.