Luan Domingos Rafael Santana (born 13 March 1991; Portuguese pronunciation: [luˈɐ̃ sɐ̃ˈtɐ̃nɐ]) is a Brazilian singer and composer of sertanejo universitário music.

Currently Santana has one of the most expensive concert fees in the country, charging about R$300,000 per performance.^{[citation needed]} His first live album was a bestseller throughout 2010, selling over 500,000 copies.^{[citation needed]} It remains among the best-selling albums in Brazil. His second album was recorded live in December 2010 at the HSBC Arena in Rio de Janeiro and will be released in 2011.^{[dated info]} The first single, "Adrenalina", a song that hit the top spot on the Billboard charts. The second single from this album Química Do Amor features Bahian singer Ivete Sangalo.

Santana was born in Campo Grande, Mato Grosso do Sul. He began singing at age three in his hometown. After realizing his talent, his father gave him a guitar to further encourage his musical skill.

In recording his second CD, Santana decided that work would live and record in the cities in Brazil where his shows were performed. Once the CD was finished, two songs "Tô de Cara"and "Meteoro" became hits as he became on of the most played artists on Brazilian radio.^{[citation needed]} Over a few weeks the video of "Meteor" had 17 million hits on YouTube.^{[citation needed]} In summer 2009, Santana broke attendance records for the cities where he performed.^{[citation needed]} Santana was invited to participate in "Rodeo of Barry. He performs at cowboy festivals and agricultural exhibitions throughout Brazil. In 2009 Santana performed 300 concerts in Brazil, with an average of 25 presentations per month. Santana launched his first DVD, recorded in August 2009 in Native Nations Park.

Elon Musk (born June 28, 1971) is a South African-born American business magnate, engineer and inventor. He is best known for co-founding SpaceX, Tesla Motors and X.com, which later became Paypal after acquiring the service. He is currently the CEO and Chief Designer of SpaceX, CEO and Product Architect of Tesla Motors and Chairman of SolarCity. While at those companies, Musk co-designed the first viable electric car of the modern era, the Tesla Roadster, a private successor to the Space Shuttle, Falcon 9/Dragon, and the world's largest Internet payment system, PayPal.

Elon Musk was born in Pretoria, South Africa, the son of a Canadian-American mother and a South African father. His maternal grandfather was from Minnesota, and had moved to Saskatchewan, where Musk's mother was born. His father is an engineer and his mother is an author, nutritionist and model, appearing on the cover of New York Magazine in 2011 and a Time Magazine supplement in 2010.

Musk bought his first computer at age 10 and taught himself how to program; by the age of 12 he sold his first commercial software for about $500, a space game called Blastar.

William Henry "Bill" Gates III (born October 28, 1955 in Seattle, Washington) is an American business magnate, computer programmer and philanthropist. Gates is the former chief executive officer (CEO) and current chairman of Microsoft, the world’s largest personal-computer software company he co-founded with Paul Allen. He is consistently ranked among the world's wealthiest people and was the wealthiest overall from 1995 to 2009, excluding 2008, when he was ranked third; in 2011 he was the wealthiest American and the second wealthiest person. During his career at Microsoft, Gates held the positions of CEO and chief software architect, and remains the largest individual shareholder, with 6.4 percent of the common stock. He has also authored or co-authored several books.

Gates is one of the best-known entrepreneurs of the personal computer revolution. Gates has been criticized for his business tactics, which have been considered anti-competitive, an opinion which has in some cases been upheld by the courts. In the later stages of his career, Gates has pursued a number of philanthropic endeavors, donating large amounts of money to various charitable organizations and scientific research programs through the Bill & Melinda Gates Foundation, established in 2000.