Lisa Kudrow joined Taylor Swift on stage for a duet of 'Smelly Cat' and it was amazing

The 'Shake It Off' star's string of special guests reached new heights last night (August 26) when she brought out Friends actress Lisa Kudrow for a performance of 'Smelly Cat'. This actually happened, and it was amazing.

@taylorswift13 & @LisaKudrow WHAT? SMELLY CAT #1989TourLA pic.twitter.com/DkTKFe1N75

— Jennifer (@jenniferh2525) August 27, 2015

The crowd at LA's Staples Center couldn't resist singing along as the pair played guitars and belted out the Friends classic.

And Kudrow isn't the first star of the beloved sitcom to join Swift on stage. Matt LeBlanc was among the special guests at one of the singer's earlier Los Angeles shows.

Swift's final night at the Staples Center was packed with special appearances, as she was joined by Selena Gomez for a rendition of 'Good for You', as well as Justin Timberlake, who performed 'Mirrors' with her.

Girl groups Little Mix and Fifth Harmony have also performed with Swift on her 1989 World Tour.