Calvin Harris is ''really taken'' by Taylor Swift.

The 'Feel So Close' hitmaker is rumoured to be dating the 'Style' singer and he is reportedly falling head over heels for the blonde beauty.

A source shared: ''It's refreshing for Calvin to be with someone who isn't trying to get something from him, who isn't just using him because he's well known.

''Taylor is not what he expected. She's down to earth and not affected by fame whatsoever. He's really taken with her, and everything about it.''

The pair have been spotted hanging out together recently, sparking rumours they are enjoying a romance, and Calvin, 31, is said to be ''turned on'' by her independence and genuine nature.

The source added to HollywoodLife.com: ''Calvin says he's never been with a girl so independent, so fun and so genuine. All of these qualities are a real turn on for him.

''He loves the way Taylor makes him feel and he loves the way she treats people, especially her fans. She's just an overall good-hearted person and he knows deep down inside that she likes him for the right reasons.''

Meanwhile, a source also previously claimed that Calvin is just what the 25-year-old singer has been looking for.

They shared: ''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.''