9 Hollywood celebs invading tech

Ashton Kutcher isn't the only star becoming a player in Silicon Valley. From Jessica Alba to Lady Gaga, here are the biggest celebrities trying their hands in tech.

Jessica Alba
Jessica Alba

When the actress and mother of two had trouble finding affordable, all-natural baby products, she co-founded Honest.com. The monthly subscription service offers customizable bundles of eco-friendly, toxin-free baby essentials, from plant-based disposable diapers to shampoo and laundry detergent. Earlier this month, the company raised $27 million in funding from venture capital firms like General Catalyst Partners and Lightspeed Venture Partners.

@FortuneMagazine - Last updated March 29 2012: 1:47 PM ET
Join the Conversation
The 12 greatest entrepreneurs of our time

Great ideas are hard to come by. Putting them to work is even harder. Meet the founders who turned concepts into companies and changed the face of business.