April 26, 2011 2:26 pm Kara DioGuardi On “A Helluva High Note” Kara DioGuardi opens up about her childhood, her relationship with her mother, and more in her new autobiography “A Helluva High Note.” US & World Videos 3:11 Ryan Gosling skips darker film roles because of Eva Mendes and daughters 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 2:05 Whoopi Goldberg reveals who will inherit her fortune