 He and his sister Yasmine designed a collection of 24 different pens to help celebrate Pilot's 100th anniversary.As part of the promotion for this collaboration, a newly remixed (by Ryan Riback) version of Mika's song "Celebrate" was released and used in advertisements.In 2018, Mika featured on "Adam to Eve no Ringo", a tribute album to Japanese musician Ringo Sheena, covering Sheena's song "Sid to Hakuchūmu" from her debut album "Muzai Moratorium" (1999).