Pop star Selena Gomez has defended Grammy Award-winning singer Taylor Swift in her ongoing feud with rapper Kanye West.West, who sang about having sex with Swift and claimed that he had made "that b**** famous", has been slammed by her friend Gomez, reports femalefirst.co.uk.“Taylor's killing it and she kind of always has been. Everybody has their own opinion. At the end of the day, you can just do what you do,” Gomez spoke on radio channel Sirius XM.Gomez has joined an army of celebrities like model Gigi Hadid, actresses Jamie King and Ruby Rose who have also lent their support to Swift.