Taylor Swift tour
Taylor Swift was recently seen wearing boyfriend Calvin Harris' T-shirt. In this photo, dated Aug. 21, 2015, Swift performs onstage during The 1989 World Tour Live In Los Angeles at Staples Center. Getty Images/Christopher Polk

Taylor Swift does not shy away from expressing love. She was recently seen wearing a gray T-shirt that her DJ boyfriend Calvin Harris had donned several times, according to reports.

The 25-year-old “Shake It Off” singer interacted with her fans at a meet-and-greet last Wednesday, where she was seen in Harris' T-shirt, Hollywood Life reported Tuesday. Swift, who is mostly seen in stylish outfits, chose to dress casually for the occasion.

Besides, Swift also openly professed her love for Harris. At her 1989 tour show in Los Angeles Monday, Swift said: “I love you." She bowed and waved at the audience when she uttered those words to Harris, who was standing at the end of the runway.

Last month, in an interview with Kiss FM UK, Harris confessed about how "insanely happy" he was with Swift. “It’s boxes I didn’t even know existed, she ticks. It’s really ridiculous,” Harris said. He added that Taylor is a great cook and an "incredible" human being.

On Monday, it was reported that Swift, who has 43.7 million followers in Instagram ranked third among celebrities. Television reality star Kim Kardashian topped the chart with 44.1 million fans, while Beyoncé finished up at the second spot with 43 million followers on the photo-sharing website.