Title: Multi-instrumentalist
Content:  Some musicians have pushed the limits of human musical skill on different instruments. British entertainer Roy Castle once set a world record by playing the same tune on 43 different instruments in four minutes. Anton Newcombe, frontman for The Brian Jonestown Massacre, has claimed to be able to play 80 different instruments. Brian Jones, late founder and guitarist of The Rolling Stones was well-known to experiment with, and utilize various instruments, both Western and exotic. By the time of his death, Jones had played a multitude of instruments on released recordings ranging from traditional blues hallmarks – like the Harmonica, Slide Guitar and the Piano – to more exotic ones such as the Sitar, Mellotron and the Appalachian Dulcimer. Another famous multi-instrumentalist is Paul McCartney; on his album McCartney, for example, he is credited with vocals, acoustic guitar, electric guitar, bass guitar, drums, piano, organ, percussion, wineglasses, Mellotron, and effects; the only other credited performer is his wife Linda who provided harmony vocals. Progressive rock composer Mike Oldfield plays many types of guitars, organ, piano, mandolin, timpani, and bouzouki (among others) with proficiency. However, he considers himself primarily a guitarist.
Title: BT (musician)
Content:  BT is a multi-instrumentalist, playing piano, guitar, bass, keyboards, synths, sequencers, the glockenspiel, drum machines and instruments he has modified himself. His process for creating songs typically starts with composition on basic instruments, like the piano or an acoustic guitar.
Title: Musical ensemble
Content:  played harmonica frequently, though not often while also singing. Ozzy Osbourne was also known to play the harmonica on some occasions (i.e. "The Wizard" by Black Sabbath). Vocalist Robert Brown of lesser known steampunk band Abney Park plays harmonica, accordion, and darbuka in addition to mandolin. Flutes are also commonly used by vocalists, most notably Ian Anderson of Jethro Tull and Ray Thomas of the Moody Blues, though these are difficult to play while singing at the same time. A less common lineup is to have lead vocals, two guitarists of varying types and two drummers, e.g. Adam and the Ants.
Title: Flight of the Conchords
Content:  Most commonly, the duo both play acoustic guitar in live performances, with McKenzie almost always playing a standard grand concert-style acoustic guitar and Clement playing a parlor guitar and sometime a classical guitar. For some songs, Clement plays acoustic bass guitar. They commonly employ 1980s-era novelty instruments like the Casio DG-20 guitar synthesizer and Omnichord, in addition to glockenspiel, bongos, and autoharp, among others. In the past decade, they have expanded their instrumentation; more recent performances, like those during their 2018 tour of United Kingdom and Ireland, saw both playing electric bass guitar (with Clement playing a Höfner 500/1) and using effect pedals. Since 2008, they have collaborated with musician Nigel Collins, who plays cello, keyboards, and percussion, for both studio and live performances.
Title: Jonny Greenwood
Content:  Greenwood is a multi-instrumentalist and plays instruments including guitar, piano, synthesiser, viola, glockenspiel, harmonica, recorder, organ, and banjo. He said in 2014: "I'm always happiest trying new instruments - and honestly enjoy playing, say, the glockenspiel with Radiohead as much as I do the guitar ... I enjoy struggling with instruments I can't really play."
Title: Bobby Gillespie
Content:  Although Gillespie only sings and plays occasional percussion onstage with Primal Scream, throughout his career he has played a number of different instruments, most notably drums with The Jesus and Mary Chain and bass guitar with The Wake. On Primal Scream's 2013 album More Light, he is credited with a number of keyboard instruments along with drums and percussion, and he played synthesizer on one of The Wake's singles. Additionally, he is shown playing guitar briefly in the music video for "You Trip Me Up" by The Jesus and Mary Chain, and twelve-string guitar on Primal Scream's single "Gentle Tuesday", and, although able to play these instruments, did not play them on either recording. Gillespie is credited with guitar on the track "Gravitational Waves (Drifter's Song)", the b-side to the Record Store Day 2016 release Mantra for a State of Mind.
Title: Baritone guitar
Content:  Rock guitarists also use down-tuned guitars. Benjamin Burnley, the guitarist/singer from Breaking Benjamin, uses custom-built PRS and ESP baritone guitars for their songs in Drop A tuning. Ko Melina of The Dirtbombs plays a Fender Jaguar Baritone Custom. Teppei Teranishi of Thrice plays a baritone on the "Fire" disc of The Alchemy Index and Major/Minor. Ian Mackaye plays a baritone guitar when playing with his band The Evens. Aerosmith's Joe Perry plays a six-string Fender VI bass tuned in G (which was later stolen) on "Back in the Saddle" on the 1976 Rocks album, and currently uses a Music Man Silo Baritone. Eddie Van Halen used a baritone guitar on the songs "Spanked" And "Runaround" from Van Halen's 
Title: David Bowie
Content:  roleplaying is evident: historiographer Michael Campbell says that Bowie's lyrics "arrest our ear, without question. But Bowie continually shifts from person to person as he delivers them ... His voice changes dramatically from section to section." In a 2014 analysis of 77 "top" singers' vocal ranges, Bowie was 8th, just behind Christina Aguilera and just ahead of Paul McCartney. In addition to the guitar, Bowie also played a variety of keyboards, including piano, Mellotron, Chamberlin, and synthesisers; harmonica; alto and baritone saxophones; stylophone; viola; cello; koto (in the "Heroes" track "Moss Garden"); thumb piano; drums (on the Heathen track "Cactus"), and various percussion instruments.
Title: Bryce Jacobs
Content:  After completing a Bachelor of Music in Performance at the Sydney Conservatorium of Music, Jacobs returned 18 months later to complete a master's degree in Composition. As he started learning the stylistic standards of both classic orchestral, jazz, and rock, he went on to design, and build, a new style of guitar. The instrument he created used twelve individual strings (not courses) and electronic pitch shifters, thereby allowing it to reach seven octaves. Shortly afterwards, Jacobs started performing as a session and touring musician for Australian artists including Josh Pyke and Genevieve Maynard, and international artists such as Sophie B. Hawkins. In 2006, Jacobs started his film scoring work, copying parts on Happy Feet. This was then followed by work as an orchestrator on Jumper, Gabriel, Australia, and P.S. I Love You. In 2008, Bryce moved to the United States, where he started working 
Title: Jesse Quin
Content:  Quin uses Harmony and Martin acoustic guitars, a Guild Starfire electric guitar, Fender Telecaster electric guitar and Gibson SG when performing with The Mets and Mt. Desolation. He uses Fender Precision basses and Ampeg Amplifiers when performing with Keane.

Question: what musical instruments does justin bieber play?
Answer: guitar.