The hitmaker has been renting a house in North London where Joe has been a frequent guest during the infancy of the relationship.
If it is a relationship, it won't be either's first in the public eye.
Harris previously dated Rita Ora and Ellie Goulding, and Swift, of course, had well-documented relationships with Harry Styles, Jake Gyllenhaal and Taylor Lautner.
The Grammy Award winner travelled the world on her 1989 tour over the past year earning her a quarter of a billion dollars last year.
The singer also has multiple sponsorship deals with brands including Elizabeth Arden, Target, Diet Coke, Keds and Apple which help pad her income.
Maybe she's not going about it the right way, but I do feel like this is authentic.
Her first album, Taylor Swift, was released in 2006.Taylor has been working since she was 16, when she released her first album.In addition to her music career, Swift has appeared as an actress in the romantic comedy Valentine’s Day (2010) and the animated film The Lorax (2012).Just two weeks after he assured the world there’s still “a huge amount of love and respect” between them, he’s suddenly deleted the sweet tweet and unfollowed Swift on Twitter.Swift, for her part, has also scrubbed Harris from her Instagram, deleting all of their pictures together (including all those adorable vacation pics). Taylor has also been involved in brief romances with Hollywood star Jake Gyllenhall and One Direction singer Harry Styles.