Regina Spektor made a recent appearance on “The Colbert Report,” to sing a few diddies, smile pretty for the camera, and talk tough about espionage.

Stephen Colbert quizzed the songstress on her experience leaving the Soviet Union at just 9 years old. The host couldn’t seem to shake the suspicion that Regina was somehow an undercover spy, waiting around in the US until a higher up called her with a secret code word.

“Comrade Spektor,” Colbert said in an exaggerated Russian accent. “Pumpkin pie.”

That suspicion only grew as Spektor announced she would be returning to Russia this summer, for the first time since leaving in 1989.

“So you’ve gathered enough information?” Colbert joked.

Regina insisted she would be visiting with purely altruistic purposes, revealing her love for all things Russian, from literature to classical music.

“I have to go back and play for the people,” she said. “Just to have the experience to get to talk Russian between songs, that’s so cool.”

That love didn’t extend to Russian vulgarity, as Regina refused to share a few curse words in her native tongue. What a nice Jewish girl.

J-Connection: Regina Spektor comes from a Jewish family. Her mother raised her right.