It looks like Calvin Harris was just kidding about swiping left on Taylor Swift.

Taylor and Calvin were spotted holding hands while leaving a HAIM concert, fueling the fire that the musically-inclined duo is dating. While their relationship has yet to be officially confirmed, things seem to be heating up between the two, as they've been seen in public together quite a few times over the past couple of weeks.

According to the Huffington Post, Taylor and Calvin attempted to leave the Troubador in Hollywood through a back exit, but were hounded by paparazzi anyway. They wore matching all-black outfits, which seems to be a theme as they were spotted dressed in similar attire back in Nashville a few days ago (March 25).

Meanwhile, J-14 thinks two of Taylor's BFFs inadvertently confirmed the relationship based on their social media activity. Leggy Victoria's Secret model Karlie Kloss followed Calvin on Instagram and Taylor's long-term BFF from her pre-fame days, Abigail Anderson, liked a photo that showed Taylor and Calvin getting chummy, posted by E! News. Ah, the beauty of social media.

While it's entirely possible that Taylor and Calvin are nothing more than friends -- who got pretty close pretty fast -- who enjoy spending every second of free time they have together, it definitely looks like things are shaping up for them in the romantic department. Holding hands is totally innocent enough, but according to PEOPLE the two were seen kissing at a recent Kenny Chesney concert. A source said, "...she leaned into Calvin, and he had his arms around her, and they were kissing."

So, what is the truth? Only time, and an official statement, will tell.

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