Katy Perry Goes Blonde: We Called It! Posted July 25, 2011 by Amanda Raye in Beauty Katy is following the 2011 trend of dramatic hair color change. This pop princess just went from jet black to warm blond, and I think she’s going even lighter! What do you think? Read more about what we said here. Before After 2011 summer trendsbleachingblonde hairfeaturedhair colorkaty perrysmurfsteenage dream