Plini Roessler-Holgate (born 1992 or 1993), known mononymously as Plini, is an Australian guitarist and songwriter. He began his career by releasing music under the name Halcyon, before switching to the use of his first name. Steve Vai described him as "the future of exceptional guitar playing", and the website MusicRadar named Plini the best prog guitarist of 2017. Plini has released a trilogy of extended plays (Other Things and Sweet Nothings in 2013, The End of Everything in 2015).