- Real name: Unknown
- Birthday: February 11th
- Birthplace: Fukushima, Japan
- Homepage: http://sasakuration.com/
- Twitter: https://twitter.com/sasakure__UK
- Facebook: http://www.facebook.com/sasakureUK.Official/
- YouTube: https://www.youtube.com/c/sasakureUK0211
- BOOTH: https://sasakuration.booth.pm/
sasakure.UK (also known as ささくれP (sasakureP)) is a Japanese musician best known for his extensive work with VOCALOIDs, most notably Miku Hatsune and GUMI. He's also well known for his .BMS files, which he often provided the artwork for himself.
sasakure.UK also leads the band UK Rampage (有形ランペイジ), which mostly covers VOCALOID songs.
- sasakure.UK is a Kaiden-level beatmania IIDX arcade player in both Single Player and Double Player modes.
- According to his comments in Atröpøs, beatmania IIDX is what inspired sasakure.UK to become a musician.
- sasakure.UK has also composed songs for SEGA's maimai, CHUNITHM, オンゲキ, Amuse World's EZ2DJ 7thTraX CLASS R Codename:Violet and MARVELOUS!'s WACCA. On EZ2DJ, he has used the TJ.hangneil alias.
- sasakure.UK has also appeared in Happy Elements' Ensemble Stars! and BANDAI NAMCO's THE IDOLM@STER MILLION LIVE!.
- sasakure.UK is speculated to be Perio (ピリオ), who has provided vocals for a handful of his songs.
- 有形ランペイジ (member of)
- Wandering Visitor
- Mistletoe -Viscumalbum-
- プロトタイプ ナナクジャク (2010)
- 幻実アイソーポス (2012)
- トンデモ未来空奏図 (2013)
- 摩訶摩謌モノモノシー (2014)
- Kaleido Mixture
- ロストピリカ (2015)
- 不謌思戯モノユカシー (2015)
- Qili (2019)
- エルゴスム (2019)
- マシーナリー.ep (2018, with OSTER project)