The "Horrible Bosses 2" and "Into the Woods" actor confirmed his relationship status on Wednesday's episode of "The Ellen DeGeneres Show."
"Oh, man!" the 34-year-old said, laughing. "I'm a single man."
The "Star Trek: Into Darkness" star was most recently linked to Icelandic beauty queen Íris Björk Jóhannesdóttir and previously dated Dominique Piek.
The rising action star has kept in shape for his various roles, something DeGeneres gladly pointed out by showing a shirtless still photo of him.
"Ellen, that's a lot of fake tanning," he said. "For the movies, you gotta look healthy."
Still, his career and fit physique have earned him a fervent fan following. DeGeneres asked him to confirm whether his fans were indeed referred to as Pine Nuts.
"They are. Yes, indeed they are. Do you have a 'Pine Nut' here?" he asked.
And she did, bringing a star-struck Pine Nut out onstage.
As for the singing? The Frank Sinatra aficionado demonstrated that as well by serenading the Pine Nut with a few bars from Sinatra's "Summer Wind." (He even sounds like the Chairman of the Board!)
Pine, who plays a sleazy heir in "Horrible Bosses 2," will play Prince Charming opposite