Actress Talulah Riley and Elon Musk, entrepreneur, investor, engineer and is the founder, CEO of SpaceX; co-founder, CEO, and product architect of Tesla, Inc. Tesla Motors Chairman Elon Musk and girlfriend Talulah Riley attend the Huffington Post Pre-Inaugural Ball at the Newseum on Monday, Jan. 19, 2009 in Washington. (AP Photo/Evan Agostini)