Calvin Harris Called Out Taylor Swift on Twitter | ELLE

Calvin Harris fires back on Twitter after it's revealed that Taylor Swift secretly co-wrote his summer hit "This is What You Came For" with Rihanna. SUBSCRIBE to ELLE http://bit.ly/SubscribeToELLE ELLE is the ultimate fashion resource for the fashion insider. Discover the latest hairstyles from the runway to the street. With a behind-the-scenes, how-to take on the fashion industry, ELLE experts are the people to trust for fashion news and inspiration.