Taylor Swift's close friends approve of her relationship with Calvin Harris.

Taylor Swift

Taylor Swift

The 'Style' hitmaker introduced her new beau, 31, to some of her inner circle, including pregnant actress Jaime King and girl group Haim, at a benefit concert at the Troubadour in West Hollywood on Thursday night (02.04.15), and pals think they are a good match because they are both workaholics.

A source close to the 25-year-old singer told Us Weekly magazine: "He's attracted to her and she thinks he's hot! He is the number one artist in his world and she is in hers. She needed an older guy who understood her and is a workaholic just like her."

The couple spent much of the event hanging out with 'Hart of Dixie' star Jaime, who recently asked Taylor to be her unborn baby's godmother.

An eyewitness said the couple held hands throughout the show and returned to Taylor's home after the gig.

The duo started dating after the Scottish DJ wooed the blonde beauty via text message after they hit it off at the BRIT Awards in London in February.

An insider previously said: "That's when it really started popping off."

The couple were first spotted strolling around Taylor's native Nashville, Tennessee last week before attending a Kenny Chesney concert together.

However, it seems not everyone is happy they are dating as it was recently claimed Calvin's ex-girlfriend Rita Ora warned Taylor he would break her heart.