Mauri Victor Leonardo Hermundsson, originally named Victor Leonardo Hermundsson, known as Mustiga Mauri, was born on October 30, 1995, in Ytterjärna Parish, Stockholm County. He is a Swedish YouTuber, journalist, and television presenter for TV4.

Mauri Hermundsson grew up in Järna. His father is from Iceland and his mother is from Germany. At the age of seven, he added the name Mauri, though it is not his official first name in the population register.

Hermundsson has worked as a journalist for Expressen and Aftonbladet. He gained popularity with the YouTube channel Uppdrag: Mat in 2018, which he runs together with photographer Esaja Ekman. The channel focuses on food and often features one or more guests. By March 2023, about 70 videos had been published. It was originally launched with funding from Aftonbladet and had, by October 2021, around 529,000 subscribers and 90 million views, averaging approximately 1 million viewers per episode. One of the most watched videos in Sweden in 2020 was Hermundsson’s episode featuring Bianca Ingrosso, which had around 1.8 million views.

In 2019, Hermundsson was nominated for the Stora Journalistpriset (Swedish Grand Journalism Prize) in the category Innovator of the Year. In 2021, he placed eighth in Medieakademin’s Power Barometer, and his channel was the fourth largest in Sweden that year. In 2022, the channel dropped to fifth place according to the same barometer.

Hermundsson made his TV debut in the fall of 2020 as host of Lego Masters Sverige on TV4, which he hosted until 2022. In 2022, he led Aftonbladet’s comedy series Noll kontroll, appeared as a guest in Benjamin’s and Bianca, and launched his own show on TV4 titled Mauri – vad hände sen?, where he meets people who were once in the spotlight but have since disappeared from public view. The program was nominated as Entertainment Program of the Year after its first season. He also participated in Fångarna på fortet in 2023.

In 2024, he was a panelist on the entertainment show Bäst i test, and in the same year, he became the sidekick to Pär Lernström during the audition episodes of the twentieth season of Idol, replacing Amie Bramme Sey.

In 2025, he stars in the TV4 series Mauri och Morberg – på en liten resa, where he travels around the world with actor Per Morberg.

He has also produced the podcast Topp 1 i Sverige, in which he interviewed top performers in various fields in Sweden.