Angela Merkel - While studying quantum physics, the former German chancellor worked as a barmaid. "I got an extra 30 pfennig for each sold glass," she told a biographer.
Narendra Modi -
When he was a child, the Indian prime minister helped his father sell tea at a train station. He later worked a tea stall with his brother at a bus station.
Nicolás Maduro - Nicolás Maduro is the current president of Venezuela. Before that, he worked as a bus driver, and even as a trade union leader.
Sergio Mattarella -
He's the president of Italy, but Sergio Mattarella once worked as a politics professor at the University of Palermo.
Jacinda Ardern - The New Zealand former prime minister originally worked in the UK, as a policy advisor to former British prime minister Tony Blair.
Shinzō Abe - The former Japanese prime minister originally worked for Kobe Steel, a steel manufacturer with its headquarters in the city of Kobe.
Sebastián Piñera -
Sebastián Piñera was a professor at several universities before he assumed power as the president of Chile.
Vladimir Putin -
The president of Russia was famously an officer with the KGB for 16 years, before resigning in 1991.
Xi Jinping - The Chinese head of state was exiled as a youth, and at one point organized laborers while living in a cave, close to the village of Liangjiahe.
Moon Jae-in - Before becoming president of South Korea, Moon Jae-in originally worked in the military and special forces.