diss track after all. Kardashian didn't say anything about the song—in which Swift appears to revive their eight-year-old feud—during her Jimmy Kimmel Live appearance, but she may have just subtly hit back in her Instagram Stories.On April 22, the Skims founder posted a two-year-old selfie featuring Karlie Kloss, per , as well as their mutual friend, Derek Blasberg, for Blasberg's birthday.