Beyonce-I Am… Sasha Fierce Promotion and release

"Beyonce-I Am… Sasha Fierce Promotion and release"The singles from I Am… Sasha Fierce album "If I Were a Boy" and "Single Ladies (Put a Ring on It)" were initially targeted to radio on October 7, 2008; however, the singles were premiered on the following day on selected radio stations in the United States. On the same day, a video was released by Beyonce Knowles' record label Columbia, featuring