#Music: Who wrote the song "This Is What You Came For" by Calvin Harris?

Taylor Swift co-wrote 'This is What You Came For' under pseudonym according to her rep []

According to Taylor Swift's rep, Taylor was the co-writer of Calvin Harris'  "This Is What You Came For," which she penned under the pseudonym "Nils Sjöberg."

Calvin Harris and Taylor Swift both wrote the song

Taylor Swift co-wrote the song when they were still together. But since they broke-up, the co-writer was credited under a pseudonym "Nils Sjöberg".