The former sweethearts had a red carpet reunion when they bumped into each other at the Clive Davis and the Recording Academy pre-Grammy gala at the Beverly Hilton Hotel.
How did it go? Find out after the jump!
Swift and Jonas sure appeared happy to see each other. After embracing for a tight hug, they chatted and laughed for a few minutes before the JoBro made his way into the party.
Meanwhile, Swift didn't want to jinx anything by predicting her chances of winning any of the eight Grammys she's nominated for, but the digits of today's date—1/31—are a good sign.
"My lucky number is 13, and I've seen it so much lately," she said. "I think it means positive things."
Swift isn't only a big-time nominee, but she's also performing on tonight's show with Stevie Nicks.
Music aside, Swift does have acting on the brain. We'll see her on the big screen next month opposite Taylor Lautner in the star-studded romantic comedy Valentine's Day.
"I was driving down the road the other day and I saw my face on the movie poster for the first time," she said. "That was really crazy."
And as if we needed any more reasons to dig Ms. Swift, she said she'd love to make an appearance on a certain hit musical television show.
"I'm really loving Glee right now," she said. "If it did happen, I'd love to see what they would do with me."
Attention, Ryan Murphy?please call Taylor Swift now!
As for the pre-Grammy party last night, the guest list was out of hand with folks like Rihanna (in the most amazing Viktor & Rolf cotton-candy-inspired dress), Jay-Z, Adam Lambert, Kris Allen, Katy Perry, Russell Brand, Kevin Jonas and his new wife, Ne-Yo, Paula Abdul, Kara DioGuardi, Randy Jackson, Pink, Mya, Leonardo DiCaprio, Stephen Colbert, Chace Crawford, Josh Duhamel, Richie Sambora, Jon Bon Jovi and so many more.
Performers included the always crowd-pleasing Black Eyed Peas, followed by Fergie's cover of "Sweet Child of Mine" with Slash. Jennifer Hudson sang "People" and "The Way We Were" in tribute to guest Barbra Streisand, who spent much of the evening chatting with tablemate Jane Fonda (I think Fox News just imploded a little bit).
Carrie Underwood dueted with Harry Connick Jr. And Mary J. Blige's performance of "No More Drama" and her Precious song, "I Can See in Color" was jawdroppping O-M-G.
Ke$ha was the only disappointment. Sorry, but the "Tik Tok" singer sounded and looked like someone doing Ke$ha in a high school talent show.
Why didn't Adam Lambert or Kris Allen perform? Oh well,there's always next year.
Find out more about Brangelina's night at the DGA Awards right here.