Beyoncé had a busy weekend, revealing a pair of new videos and more details from her November 18th album I Am. The LP is rumored to be a double-disc album featuring two distinct styles. “I Am Beyoncé” will reportedly feature the more introspective mid-tempo songs and ballads, while Disc Two, dubbed “I Am Sasha,” features the more aggressive dance numbers. The split is showcased in two new black-and-white videos — “Single Ladies” from the more mischievous “Sasha” disc (above) and “If I Were a Boy” via the “Beyoncé” half (after the jump).

“Sasha” is short for B’s longtime alter ego “Sasha Fierce,” and a pair of viral sites emerged over the weekend — “Who is Sasha Fierce?” lists a phone number to join the Sasha Fierce Mobile Mob. Beyoncé first began discussing Sasha publicly in 2005, when she told Vanity Fair that was the name of her more outrageous stage persona. She also blamed Sasha for taking over her 2004 Grammy performance with Prince.

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