This is the first performance of "Smelly Cat".
The woman who is singing in Central Perk is Chrissie Hynde, singer and guitar player of the band The Pretenders.
Lea Thompson crosses over in her role from Caroline in the City (1995). The same night this episode aired, David Schwimmer appeared as Ross on The Single Guy (1995) and Matthew Perry appeared as Chandler on Caroline in the City (1995).
The second and final appearance of Terry, the owner of Central Perk
Phoebe and Rachel are only seen at Central Perk and do not share any scenes with the rest of the gang.