March 4, 2011 1:10 pm Jennifer Lopez: “Idol's” Top 13 Was An “Emotional Rollercoaster” Jennifer Lopez chats about choosing the Top 13 for “American Idol.” Plus, former “Idol” judge Simon Cowell says that J.Lo and Steven Tyler are too nice–does she agree? US & World Videos 1:07 Britney Spears spotted as authorities respond to alleged hotel incident 2:15 Prince William and Kate Middleton ‘going through hell,' friend claims (report) 8:01 Lady Gaga's outfit changes, Rihanna's bold looks and more iconic Met Gala moments 2:48 Taylor Swift fans react to Jake Gyllenhaal and Sabrina Carpenter's ‘SNL' appearance 5:57 Why your monthly horoscope for May is looking lucky