Takehiro Mamiya (間宮丈裕, Mamiya Takehiro, born September 25, 1989), known professionally as Yuyoyuppe (ゆよゆっぺ), is a Japanese DJ, songwriter, producer, and singer, known for his Vocaloid music.

Takehiro Mamiya was born on September 25, 1989,^[3] when his parents were expecting a baby girl. He first learned to play the guitar in the sixth grade, by his father.^[4] First playing on piano and guitar in junior high school, he began to write music for club activities,^[5] and later performed on guitar and vocals in a band since high school.^[4]

In 2008, Yuyoyuppe began to post videos on the video sharing service Nico Nico Douga,^[4] where he would become well known for his Vocaloid songs with elements of hard rock,^[6] with considerable success for his song "Hope", sung by Hatsune Miku.^[5] He would later join the band My Eggplant Died Yesterday as a vocalist.^[7]

On September 26, 2012, Yuyoyuppe released his debut album Story of Hope,^[6][8] as his first release on the label Yamaha Music which he joined that year.^[2] On January 16, 2013, he released the album Wall in the Presence: Yuppemism Edition to the iTunes Store.^[9] On July 7, 2014, he released the album Vocaloholic,^[10] and later that month, he left My Eggplant Died Yesterday to form a new band called Grilled Meat Youngmans.^[11]

Yuyoyuppe has produced music for other artists, such as Babymetal, for their debut album Babymetal.^[12] He has since written music for the band, including the song "Karate" from Metal Resistance. Finding appeal in the band's music, he was approached by the band's manager Kobametal to write a song, to which he obliged.^[13]

Mamiya also performs as a DJ under the stage name DJ'Tekina//Something, having performed at the Rock in Japan Festival and Summer Sonic Festival.^[14][15][16]

He is married to voice actress Hibiku Yamamura, who announced their marriage on Twitter on November 3rd, 2023.^[17]

His music follows the genres of rock and metal.^[18]

Mamiya has expressed that although he has solid scheduling and deadlines, he follows his instincts while working, which loosens his fixation on them. He has also stated that distributing his music digitally allows for audiences abroad to discover his work.^[18]

Babymetal – Babymetal (2014)

• "Babymetal Death"
• "Megitsune"
• "Uki Uki ★ Midnight"
• "Rondo of Nightmare" (also lyricist and composer)

Momoiro Clover Z – Hakkin no Yoake (2016)

• ""Z" no Chikai"

Babymetal – Metal Resistance (2016)

• "Karate" (arranged as Yuppemetal; also lyricist and composer)
• "Yava!" (arranged as Yuppemetal)
• "From Dusk Till Dawn" (arranged as Yuppemetal; also composer)
• "GJ!" (arranged as Yuppemetal; also lyricist and composer)
• "Sis. Anger" (arranged as Yuppemetal)

Babymetal – Metal Galaxy (2019)

• "↑↓←→BBAB" (arranged as Yuppemetal)
• "Night Night Burn!" (arranged as Yuppemetal)
• "In the Name Of" (arranged as Yuppemetal)
• "Kagerou" (arranged as Yuppemetal; also composer)

Tokoyami Towa – Aster (2023)

• "ANEMONE"

Babymetal – The Other One (2023)

• "Monochrome" (arranged as Yuppemetal; also composer)
• "Believing" (arranged as Yuppemetal; also composer)

As DJ'Tekina//Something

• Babymetal – "Headbangeeeeerrrrr!!!!!" (Night of 15 mix) (2013; from Kawa-EDM)
• Babymetal – "Megitsune" (Tekina Remix) (2013)