Harry Potter actor amazed people 'turned on her so quickly'
Lewis says 'Video Games' star sounded like a 12-year-old 'pretending to sing'
Singer opens up about her sudden rise to fame
'Video Games' singer defends her invitation to appear on iconic sketch show
Singer admits she is bowled over every time fans pay attention to her
But the Prime Minister says he has no time for Katy Perry or Bruno Mars
Singer's debut album is due out on January 30
Hear a new cut from singer's debut 'Born To Die' now
Singer lands a contract with the company's talent wing