Taka was invited by guitarist/leader, Toru Yamashita, to join the Japanese rock band, One Ok Rock in 2005. The band released their first independent CD in 2006 and were signed by Amuse, Inc., whom they made their major debut with. The band did moderately well with music sales until they hit with major success in August 2012 upon the release of "The Beginning", which was the theme song for the live action movie adaption of the manga and anime, Rurouni Kenshin. The band's concerts have been sold out many times with high attendance and constantly adding new tour dates in Japan. One Ok Rock has also held concert tours overseas in Asia, U.S., Europe and South America.
In March 2013, Simple Plan announced a new version of their song "Summer Paradise" with Taka for a Japanese-only release [5] They later performed together at the music festival, Punkspring 2013 in Tokyo, Japan.[6]
In November 2013, Taka helped Pay Money to My Pain to sing one of their songs on their tribute album "Gene" after their vocalist, K (Kei Goto), died due to heart failure.[7]
In summer 2014, One Ok Rock's newest songs, "Mighty Long Fall" and "Heartache" were featured as theme songs for the live action movie sequels, Rurouni Kenshin: Kyoto Inferno and Rurouni Kenshin: The Legend Ends, respectively.
Taka during an autograph session at Lucky Strike Live, October 22, 2015
In February 2015, Taka was featured as a guest vocalist on the track "Dreaming Alone" by Against the Current.
As of July 2015, One Ok Rock is signed with the U.S. label, Warner Bros. Records and plans to release an all English version of their album, 35xxxv in the fall.