Taylor Swift, who's in the middle of her sold-out 1989 World Tour, and boyfriend Calvin Harris are really perfect for each other. Just ask the common friend who set them up.

"How did I set up Taylor and Calvin? It just kind of happened," Elle Goulding said. "They're both good people, both dear friends. I thought it might work - and it did."

In a previous interview with The Sun, Elle Goulding described Taylor Swift's boyfriend as a "really great mate."

"He's so fantastic, and Taylor is such a cool person who I love. I thought, 'They're both really awesome and both really tall, they'll brilliant together,'" she said.

As for Taylor Swift, not many people know that she's "really funny."

"She's got a very British sense of humour," the singer added. "We love doing scenes from The Office."

Meanwhile, Taylor Swift and Calvin Harris are reportedly looking forward to when the "Bad Blood" singer is finished with her 1989 World Tour.

"They are looking forward to a handful of nights dining in and lounging in pajamas, watching movies and hanging with her cats," the alleged insider told Hollywood Life.

"They want to do the homebody thing and not really go anywhere since she has been traveling for her tour, she just wants to be home with friends and family and of course Calvin," the source added.

With the expectation of always having to perform, with the spotlight trained on her, it's easy to think that Taylor Swift is under a lot of pressure to hit the right note for her 1989 World Tour. But it's good to know that boyfriend Calvin Harris is very supportive.

"He's so supportive of her and her career, he's not intimidated by it at all and just wants to do everything he can to cheer her on," the Hollywood Life source claimed. "Taylor is so happy with Calvin, things with them just keep getting better."