Kendrick Lamar's 2012 single "Backstreet Freestyle" led to his 2014 collaboration with Taylor Swift on "Bad Blood".

Taylor Swift wrote Ellen Pompeo “the biggest check without blinking an eye”. The ‘Grey’s Anatomy’ star appeared in the 35-year-old pop star’s 2014 ‘Bad Blood’ music video ...

Ellen Pompeo shared her admiration for Taylor Swift's kindness and her gratitude for being included in the Bad Blood music video, which earned her significant cool points with her children.