Cameron and Tyler Winklevoss, principals of Winklevoss Capital, joined HuffPost Live's Tech Game Changers series Tuesday to discuss their investment in the new shopping startup Hukkster. The retail service allows e-shoppers to use a bookmarklet to easily "Hukk" items they like, and Hukkster notifies the shopper of price changes and when the item goes on sale. The company was founded by Erica Bell and Katie Finnegan, who joined the Winklevoss twins in studio.

Cameron Winklevoss explained their interest in Hukkster, saying "online deals are being pushed to people today in a very untargeted method. Anybody who's shopped online has probably had their inbox cluttered with a lot of these emails. What Hukkster is basically doing is empowering the retailer to pull those deals, and it just made perfect sense to us."

One thing the twins weren't as open about was their role in Facebook's early days, which was at the heart of a 2004 lawsuit they brought against Facebook and its founder Mark Zuckerberg. The twins eventually settled with Facebook for $20 million in cash and $45 million in stock. HuffPost's Executive Tech Editor Bianca Bosker asked the twins about what they'd do if they were running Facebook today. Watch their response above.

WATCH THE FULL SEGMENT ON HUFFPOST LIVE.