Condoleezza Rice, who once dreamed of being a concert pianist, is ready to “Rock” New York.

The former secretary of state will guest-star on the NBC comedy “30 Rock,” Politico reported yesterday.

Tina Fey, the show’s creator, writer and star, told a Washington audience while promoting her memoir, “Bossypants,” that Rice would play the former girlfriend of Alec Baldwin’s character.

Baldwin plays business exec and die-hard Republican Jack Donaghy — who has dropped hints that he once dated “a high-ranking African-American member of the Bush administration.”

Fey, famous for her impressions of 2008 GOP vice-presidential candidate Sarah Palin on “Saturday Night Live,” told the crowd she would never go into politics because “that’s for suckers.”