Credit: Micheal Rozman/Warner Bros.

Taylor Swift may have been single on Valentine's Day, but she wasn't alone.

While appearing with Zac Efron to promote The Lorax on Ellen Tuesday, the 22-year-old singer revealed how she turned what could have been a depressing day into something to celebrate.

"I actually had a pathetic single girls party. It was cool," said Swift, who recently had a secret fling with My Week With Marilyn star Eddie Redmayne. "That's actually what it was called."

"I'm not saying that being single is pathetic," the country crooner clarified. "We've talked about this. I think it's awesome."

Swift -- whose exes include Joe Jonas, Jake Gyllenhaal and Taylor Lautner -- invited her single gal pals over and they "just ate whatever we wanted and danced," she told host Ellen DeGeneres, 54. "We made these little profile cards about why we're single."

Efron, 24, laughed and told Swift: "That's so different than what single guys do. I went to a screening of a film that I did called Liberal Arts, then cooked some dinner."