Taylor Swift's '1989' tour is already making all the right noises for being star studded. But singer recently pulled an ace when she invited 'Friends' star Lisa Kudrow aka Phoebe Buffay on stage to perform the legendary song 'Smelly Cat' along with her. Phoebe Buffay was a self-proclaimed artist on the popular American sitcom and the song 'Smelly Cat' is perhaps considered an anthem for all 'Friends' fans. Both Kudrow and Swift strummed the guitar on stage and sang the song together with thousands of fans cheering along. Here is a video that one of the fans posted of song. Go on, here it, it is actually quite epic.