Emma Roberts is an actress.
Emma Rose Roberts ( born February 10 , 1991 ) is an American actress and singer . After making her film debut as Kristina Jung in Blow ( 2001 ) , Roberts gained recognition for her lead role as Addie Singer on the Nickelodeon television series Unfabulous ( 2004 -- 07 ) . Looking for more mature roles , Roberts went on to obtain both supporting and lead roles in Lymelife ( 2009 ) , 4.3.2.1 . She starred in the lead role of Chanel Oberlin on the Fox television series Scream Queens , as well as playing main roles in two seasons of American Horror Story .