At the age of 12 in 2002, Matsushita decided to pursue a career in music, enrolling in Caless Vocal & Dance School.

[2] Despite disagreements with his mother regarding his future plans, a trip to New York City in October 2005 strengthened his determination to become an artist.

"ふたり" from his 4th single was used as the movie insert song of Toki o Kakeru Shōjo, which Yuya made an appearance in as Tetsuo Toi.

[6] Matsushita reprised his role as Sebastian Michaelis in Musical Black Butler: The Most Beautiful Death in The World – A Thousand Souls and The Fallen Grim Reaper.

[13] Matsushita later starred in Asu no Hikari wo Tsukame 2 as Ren Kagami, a high school soccer captain.

[16] Matsushita also played a supporting role as Kakeru in Pillow Talk ~Bed Of Speculation~ as an oden store manager.

In 2013, he appeared in multiple stage plays, including Bug's Value ~Even More Bursting~, a reprisal of Black Butler: the Most Beautiful Death in the World, The Alucard Show, and My Host-chan S. Having departed from Sony earlier in the year, in July 2013, he launched the label Japanese Dream Records, releasing his 12th single "SWEET LOVE" in the same month.

[21] He also returned to his role as Kageki in Watashi no Host-chan in the special YouTube-based drama series produced by TV Asahi.

[24] On August 24, 2023, it was announced that Matsushita had become affiliated as an artist with the talent agency Amuse Inc.[25] In 2025, he is set to play the role of Lola in Kinky Boots.