By Joan Bennet

Randi Zuckerberg’s R to Z Media is bringing social commerce company BeachMint and live event streaming company LiveStream together in a live video broadcast shopping experience on Facebook on Cyber Monday.

The way the day will unfold is, shoppers will watch the live program broadcast from BeachMint’s offices in Santa Monica. At the same time, exclusive remote segments with Mary-Kate Olsen and Ashley Olsen, Kate Bosworth, and Rachel Bilson, will air on www.facebook.com/stylemint. A video application will enable real-time shopping and exclusive Cyber Monday deals to stream concurrently.

This is a first for a couple of things. First, the Olsen twins are getting together for a Facebook live event. It is also the first time, Facebook is attempting such a collaborative social commerce exercise.

Randi Zuckerberg (Founder, R to Z Media): The best shopping experiences are social ones.

BeachMint is a venture backed e-commerce company for designer-curated direct to consumer sites, founded by serial tech entrepreneurs, Josh Berman (Co-Founder MySpace) and Diego Berdakin. BeachMint launched their first brand, JewelMint.com, with Kate Bosworth in October, 2010, and StyleMint.com with Mary-Kate Olsen and Ashley Olsen in July, 2011.

Rto Z Media is a new social venture being developed by Randi Zuckerberg, the former head of marketing at Facebook, who also happens to be its founder Mark Zuckerberg’s elder sister, and a Harvard grad. Her company plans to engage in intersecting the world of traditional media with social technology, and is set to formally launch next year.