Justin Bieber has been seen playing several guitars over the years, but one of the most notable is the Sonus Parlor acoustic guitar. This guitar is made by a small Canadian company called Sonus Guitars and is known for its unique design and high-quality sound. The Parlor model is a relatively small guitar with a classic shape, and it features a solid spruce top and mahogany back and sides. It has a warm, rich tone that is perfect for playing a variety of genres of music.