[1] Leikola made his United States debut in 2014, when he won the "Funniest Person in the World" competition organized by the comedy club Laugh Factory.

[4] Prior to a career in stand-up comedy, Leikola studied at the University of Jyväskylä with physics as his main subject and Philosophy as secondary.

[5] While studying physics and chemistry at the University of Jyväskylä, Leikola was first introduced to stand-up comedy at the campus bar Ilokivi where he debuted in 2002.

[6] In 2003, he received his own segment on the Hyppönen-Enbuske Experience [fi] talk show as a "correspondent for the City of Jyväskylä" in which he performed for several years.

[11][13][14] In 2015, Leikola traveled across the United States with his "Funniest Person In The World" tour[13] and also in Finland with his comic band Muusikot.

[13] Leikola was also invited to the Finnish Independence Day Reception at the Presidential Palace in Helsinki, Finland.

[6] In 2019, Leikola started to collaborate with Merriam-Webster's dictionary, creating a series of videos for them about the quirks of the English language.

[13][26] In 2022, Leikola performed for 45,000 people in Dodger Stadium in Los Angeles as an opening act for Gabriel Iglesias.

[7] Leikola has also stated that he has always admired American comedian George Carlin, who drew inspiration for his comedy from the analysis of language.

In 2013, Leikola wrote Saikkua kiitos (Sick leave, Please) revue along with the actor Kalle Pylvänäinen.

The revue toured in different theaters in Finland and received a sequel in 2017 called Lisää saikkua, kiitos!

[35] In 2015, the band members included professional musicians Richard Murto, Jussi Turunen, and Marko Jansson.