Tesla co-founder Elon Musk has become the world's richest person. He overtakes the top spot Amazon’s Jeff Bezos to become the world’s richest person as car firm’s shares soar after "blue Senate" victory.

The Tesla and SpaceX entrepreneur was pushed into the top slot after Tesla's share price increased and now his net worth crossed $185bn.

Elon Reeve Musk is a business magnate, industrial designer and engineer. He was ranked 25th on the Forbes list of The World's Most Powerful People, and was ranked joint-first on the Forbes list of the Most Innovative Leaders of 2019. As of January 7, 2021, Musk's net worth was estimated to be US$185 billion, making him the richest person in the world, surpassing Jeff Bezos.

Musk was born to a Canadian mother and South African father and raised in Pretoria, South Africa. He briefly attended the University of Pretoria before moving to Canada when he was 17 to attend Queen's University. He transferred to the University of Pennsylvania two years later, where he received dual bachelor's degrees in economics and physics.

Elon moved to California in 1995 to begin a Ph.D. in applied physics and material sciences at Stanford University, but dropped out after two days to pursue a business career. He co-founded Zip2, a web software company, which was acquired by Compaq for $307 million in 1999.

Musk then founded X.com, an online bank. It merged with Confinity in 2000, which had launched PayPal the previous year and was subsequently bought by eBay for $1.5 billion in October 2002.

In May 2002, Musk founded SpaceX, an aerospace manufacturer and space transport services company, of which he is CEO and lead designer. He joined Tesla Motors, Inc. (now Tesla, Inc.), an electric vehicle manufacturer, in 2004, the year after it was founded, becoming its product architect that year and its CEO in 2008. In 2006, he helped create SolarCity, a solar energy services company (now a subsidiary of Tesla).

In 2015, he co-founded OpenAI, a nonprofit research company that aims to promote friendly artificial intelligence. In July 2016, he co-founded Neuralink, a neurotechnology company focused on developing brain–computer interfaces.

In December 2016, Musk founded The Boring Company, an infrastructure and tunnel construction company focused on tunnels optimized for electric vehicles. In addition to his primary business pursuits, he envisioned an open-source high-speed transportation system known as the Hyperloop based on the concept of a vactrain.

Musk has also been the subject of criticism due to unorthodox or unscientific stances and highly publicized controversies. Following the rejection of a prototype submarine from Tesla that Musk had offered to be used in the 2018 Tham Luang cave rescue, he called a diver who advised in the rescue and disparaged the prototype a "pedo guy" and in response the diver sued for defamation; a California jury ruled in favor of Musk.

Also in 2018, he falsely tweeted that he had secured funding for a private takeover of Tesla at $420 a share. The U.S. Securities and Exchange Commission sued him for the comment; he temporarily stepped down from chairman and settled with the SEC; the settlement included limitations on his Twitter usage.

Musk has also received substantial criticism for his views on artificial intelligence, public transportation, and the COVID-19 pandemic.

Musk met his first wife, Canadian author Justine Wilson, while both were students at Ontario's Queen's University. They married in 2000 and separated in 2008. Their first son died of sudden infant death syndrome (SIDS) at the age of 10 weeks. They later had five sons through in vitro fertilization twins in 2004, followed by triplets in 2006. They share custody of all five sons.

On May 7, 2018, Musk and Canadian musician Grimes revealed that they were dating. On January 8, 2020, Grimes announced that she was pregnant with their first child. Grimes gave birth to a son on May 4, 2020. 

According to Musk and Grimes, his name was "X Æ A-12". However, the name was deemed illegal under California law, because it contained characters that are not in the modern English alphabet, and was then changed to "X Æ A-Xii". This drew more confusion, as Æ is not a letter in the modern English alphabet. The child was eventually named "X AE A-XII", with "X" as a first name and "AE A-XII" as a middle name.