He is also known for his talent in composing haiku. He has twice won the in-program Haiku Meijin Tournament on Mainichi Broadcasting System variety show "Prevato," which he has appeared on irregularly since 2015.[8]
On January 26, 2023, he announced on the official website of Johnny & Associates that he married a civilian woman, becoming the first Kis-My-Ft2 member to be married.[9]
First-class license as Dismanling for Tuna
Yokoo is known for his culinary skills and even has a regular column in a cooking magazine,[10] but he also has an unusual license.[11] In 2017, Yokoo obtained a first-class license as dismanling for tuna on Kis-My-Ft2's variety show Kis-Mileage, which aired on TV Asahi.[12] A first-class license as dismanling for tuna is a difficult license to dismantle large tuna to make sushi and sashimi using a long, dangerous knife at shows and other events while enlivening the occasion with conversation.[13] At the time, there were only seven people in Japan who held a first-class license, and none of the celebrities had obtained it.[14] Yokoo failed the test once when he took it in March, but he repeatedly trained on his own between jobs and took the final test at the Tsukiji fish market in Tokyo.[14] He then passed, albeit with a condition ("Although his skills was passable, he has no experience performing shows alone, so he must perform shows with another first-class dismantler for a while").[14]
The Legend of the Galactic Heroes: The King of the Attacks (August 3–12, 2012, The Galaxy Theatre) - Siegfried Kirchheiss (Actor)
The Legend of the Galactic Heroes: Shining Star, Breaking Through the Darkness (November 15–18, 2012, Tokyo International Forum) - Playing the role of Siegfried Kirchheiss (with Takashi Nikaido)
The Legend of the Galactic Heroes Chapter 3: Civil War (March 31 - April 13, 2013, Aoyama Theatre) - as Siegfried Kirchheiss
The Legend of the Galactic Heroes Chapter 4: The Second Part, Clash (February 12 - March 2, 2014, Aoyama Theatre) - Playing the role of Dusty Attenborough
Yamamoto Test Paper vol.2 "Pictogram" (May 2–7, 2024 (tentative), Theater Sun-mall)