The Price Tag singer will make her debut on US television on March 12 when she appears as the musical guest for the hit show.
And the 22-year-old is clearly excited at the possible prospect of breaking America as earlier today she tweeted: 'Arghhhh how exciting!!! US here I come!!' as her publicist announced the news: 'On March 12, @jessiejofficial will make her first U.S. television appearance as the musical guest on Saturday Night Live!'
metro.co.uk