(Chismoseando, At.40.com) The singer Jesse McCartney with his song Leavin 'this week took the number 1 position in the billboard of songs heard in the United States of the page that leads the young American journalist Ryan Seacrest. In the second position and down a post that the winner of last week Rihanna with her song Take A Bow and closes the table of honor at the third box Katy Perry with her song I Kissed A Girl.