Tony: (at the National nightclub) And with it the song stylings of Bon Jovski. "Livin' on a Prayer. . ."
It is unclear in the episode whether the performer Tony is referring to is a Russian impersonator or if Tony is making one of his witty comments. Regardless, Tony is referring to Jon Bon Jovi, lead singer for the band Bon Jovi. One of their largest hits was the aforementioned "Livin' on a Prayer."