AMONG many talented female singers, Billboard named Katy Perry as its Woman of the Year for 2012. This year has been impressive for the 27-year-old American singer. Her music still makes headlines (成为新闻头条). Her hugely successful tour “California Dreams” finished at the beginning of this year. She also released her 3D concert documentary Part of Me, sharing with her fans her behind-the-scenes stories, like her recent divorce (离婚).