Who is known for playing guitar? That depends on what style of guitar is being played. There are far too many great guitarist who are known for their virtuosity across all styles. My favorites include Jimi Hendrix, Eric Clapton. Jimmy Page, Stevie Ray Vaughn, Mark Knopler, Duane Allman, and far too many more to list.
Guitar
Brandon Jacobs is known for his amazing guitar feats and his viruoso solos on an acoustic guitar and also on his electric double neck guitar while playing with steel finger picks.
Tommy Joe is known for his guitar playing, not his dancing. ;)
Jackson Rathbone is known for playing the guitar. He is also a singer and musician in addition to being an actor.
Fluid string bending, vibrato, and staccato
Toots Thielmans is a Belgian musician who is best known for playing both the harmonica and the guitar. He is also very well known for whistling in his music.
Johnny Guitar Watson is most noted for his flamboyant guitar playing and singing. Some of his best known tracks include 'I Need It' and 'Superman Lover'.
Michael Angelo Batio plays an "X" shaped quad guitar with four necks. Rick Nielsen is known for playing a five neck guitar.
The man famous for playing guitar in the UK band Madness was Chris Forman, also know as Chrissy Boy. Cathal Smith, known as Chas Smash was also the man that played the bass guitar for the band.
A person who is a skilled guitar player would be said to have a talent for playing the guitar.
You don't have to repeat the 'be' verb. This sentence is ok: The teacher is playing (the) guitar and singing.
Playing the guitar will not make your hands larger.