When did Rihanna come to America?

She came to America in 2005 with her family then she moved to England so she could proform in x factor in 2007 and then she moved back to America because she found someone that could help her right some songs

by Rihanna the winner of x factor thankyou for voting 4 me and gave ma a chance of beeing famous that is wat i have wanted to be all my life a singer thankyou again everyone