Where did that come from?

I listen to country music, but maybe some of you know this song and will know what I am talking about.
Vinny is just starting to really talk so that we can understand him. so sometimes I have to have him repeat stuff over and over.
Anyway we were driving in the car today and Vinny keeps saying something that I couldn't understand... I thought he was saying "Mama, Mama, Poke her face..."I thought it was so weird, so I kind of ignored him... He kept saying it and saying it and dancing, so I turned up the radio to see what he was dancing to, and he was singing.... "my poker face" by Lady Gaga!