taylor-swift-zac-efron-ellen.JPGMichael Rozman/Warner Bros.

Taylor Swift and Zac Efron appear on The Ellen DeGeneres Show today, and the two chat about everything from their upcoming animated flick, Dr. Seuss' The Lorax, to how they spent Valentine's Day.

When asked whether they were an item, Taylor laughed off the report and told Ellen, "We are not a couple. He’s awesome, we are not a couple though. You hear people get together when they’re shooting movies, co-stars. But not like animated co-stars. You know what I’m saying."

Too bad! Taylor also reveals that she spent Valentine's Day with several gal pals, and while it wasn't all that romantic, it sounds like she had a good time! "I’m not saying that being single is pathetic," she told Ellen. "We’ve talked about this. I think it’s awesome. I had all my single girlfriends over and we ate junk food and just ate what ever we wanted and danced. We made these little profile cards about why we’re single."

Zac quipped, "That’s so different [from] what single guys do," adding that he went to a movie screening and cooked dinner for "a friend", whose name he didn't share. Hmm, could it be Lily Collins? After spotting the duo out together twice this month, it seems like things are really heating up between them! But she can't be happy that he's referring to her as a "friend!"