"Friends" fans got a treat when Lisa Kudrow, known for her role in the show as Phoebe Buffay, showed up on state with Swift at the Staples Center in Los Angeles on Wednesday.

Anyone who has seen a few episode of "Friends" probably knows the strange ways of Phoebe Buffay and if you're a fan of the show you probably know every word to her unique tunes played at "Central Perk."

Her most well known song is of course the touching ballad, "Smelly Cat." It was no secret how "Friends." fans felt about the infamous song when Lisa took the stage with Swift and began singing. It was hard to hear the two ladies on stage over the roar of the crowd singing along, just as out of tune as Phoebe Buffay.

This was night 5 of Taylor Swift's sold out Los Angeles Staples Center 1989 World Tour Concert. Taylor brought multiple celebrities on stage with her throughout the tour including Justin Timberlake, Beck and Ellen DeGeneres.

The duet ended with a roaring crowd reaction. As a "Friends" fan myself, I feel this is the best thing to happen since the '90s sitcom ended! Am I the only one who thinks Phoebe should go on her own tour?! If Phoebe doesn't want to do it, maybe Regina Philange will!