Pakistan, Sept. 1 -- Lisa Kudrow wishes she could fulfill this request, but she doesn't want to. More than 20 years after Friends went off the air, the actress emphasised that she's staying on vocal rest when it comes to a very specific wish from fans.

"Sometimes people will stop me and say, 'Oh, sing Smelly Cat,'" Kudrow shared on a recent episode of NPR's Fresh Air radio show. "I don't want to do that. I really don't want to do that."

The song became synonymous with her character Phoebe Buffay-a quirky aspiring musician-as one of the show's most-used running gags after she sang it in season two of the sitcom. While the 63-year-old-who co-wrote the track with Friends executive producer Adam Chase and Pretenders lead singer Chriss Hynde...