Taylor Swift gushes over boyfriend Calvin Harris at iHeartRadio Music Awards

Taylor Swift couldn't help but get gushy over her main squeeze.

On Sunday at the iHeartRadio Music Awards on Sunday, Swifty scooped up the Best Tour Award for her record-breaking tour for 1989 and as she thanked all her fans, she made sure to thank her No. 1 fan, boyfriend Calvin Harris.

"I think my favorite part was the camaraderie of all the artists," she said in her acceptance speech. "I'm so thankful to everyone who donated their time to surprise my crowds."

She then thanked Calvin Harris, who won the award for dance artist of the year earlier in the evening. "I had the most amazing person to come home to when the spotlight went out and the crowds were all gone, so I want to thank my boyfriend Adam," she said, referring to Harris' real name, Adam Wiles.

While Swift got gushy about Calvin, Justin Timberlake got gushy about Swift. The "Suit and Tie" singer introduced Swift's award and made sure to recognize her tour's incredible achievements.

"Some people are out here to build walls, not naming any names," Timberlake joked to the crowd as he talked about Swift, eliciting groans from the audience. "Oh, shut up. You're not even old enough to vote," the singer jokes before adding, "Taylor chooses to bring down walls."

Swift also snagged the award for Female Artist of the Year while Harris snagged Dance Artist of the Year.

Check out all the red carpet arrivals: