Explorer who published Seven Summits - The Photobook in November 2008. He ventured up Mount Kilimanjaro in 2003. He has over 100,000 followers on his johanernst Instagram account.
He studied piano for three years after watching a man play on TV at the age of 15. This led to him working professionally.
He became an explorer and motivational speaker in the early 1990s after losing a bet to a friend. He won the St Eriks Medal in 2009.
He is from Stockholm, Sweden.
He posted a photo of him and Pharrell Williams at a charity event for the producer's birthday.