Taylor Swift may not be performing at the I Heart Radio Awards tonight, but she will be presenting, so we weren't surprised to snap her at the rehearsal for the show on Saturday afternoon!

Swift is nominated for four awards (including Artist of the Year), and even if she doesn't win big tonight, we know we'll catch her dancing in the audience! Madonna, Iggy Azalea, Rihanna, Sam Smith, Kelly Clarkson, Snoop Dogg, Jason Derulo and Meghan Trainor will be performing, so it's quite a lineup. The show will be held at the Shrine Auditorium, and guests will sit at tables rather than seats in the venue.

But will Taylor be bringing new beau Calvin Harris to the show? Last we checked he's not a confirmed guest, but seeing as the two packed on the PDA three days ago at Kenny Chesney's Nashville concert, there's a good chance they could make their first official appearance as a couple tonight! Hey, we can dream...

Even though the lovebirds seem to be moving forward pretty fast, Taylor might want to watch her back. A few weeks ago Calvin kinda threw her under the bus when he chatted with the Capital FM Breakfast show and said that the country cutie is "the opposite of my type" and proclaimed that he'd swipe left (i.e., reject her) if he ever stumbled across her on Tinder!

And not only that, but a source tells TMZ that the hunky Scottish DJ may have ulterior motives in dating T. Swizzle! An insider tells the site that "Calvin is the best businessman among DJs and knows the cache of dating the biggest pop star in the world." The source adds that Calvin is "wired for success and there's no hard dividing line separating his personal life from business."