Taylor Swift & Zac Efron Address Dating Rumors

Zac Efron and Taylor Swift appear on 'The Ellen DeGeneres Show' on February 21, 2012 -- Michael Rozman/Warner Bros.

Taylor Swift and Zac Efron have been the subject of persistent dating rumors lately and the stars are finally speaking out about whether or not they're a couple.

The "Dr. Seuss' The Lorax" co-stars cleared up the rumors with Ellen DeGeneres in an interview airing on "The Ellen DeGeneres Show" on Tuesday.

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"We are not a couple," Taylor, 22, said of Zac, 24.

"He's awesome, we are not a couple though," the singer continued. "You hear people get together when they're shooting movies, co-stars. But not like animated co-stars. You know what I'm saying."

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"Yeah," Zac added with a laugh.

"Oh my god, as we were recording out voiceovers on separate coasts we really connected," Taylor joked.

So how did the two stars spend their recent Valentine's Day?

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"I actually had a pathetic single girls party. It was cool. That's actually what it was called. I'm not saying that being single is pathetic. We've talked about this. I think it's awesome," Taylor -- who has been linked to Joe Jonas, Taylor Lautner, Jake Gyllenhaal and more over the years - told Ellen. "I had all my single girlfriends over and we ate junk food and just ate whatever we wanted and danced. We made these little profile cards about why we're single."

As for Zac, who reportedly stepped out with "Mirror Mirror" star Lily Collins on Valentine's Day, the actor confirmed to Ellen that he did indeed spend the special night with someone, but stopped short of revealing who.

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"I went to a screening of a film that I did called 'Liberal Arts.' Then cooked some dinner," he said.

"With who?" Ellen asked.

"A friend," Zac coyly replied.

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