Back scratch gone weird

Tonight I was scratching my almost-five-year-old daughter's back before she drifted off to sleep.

Girl: Wow, that feels great!


Me: Oh yeah?


Girl: Your fingernails are sharp. They feel good on my back. They feel like... like... [sings] 867-5309. [Giggles]


Me: You are so weird.


Girl: I know. 

In case you need a refresher: