Elvis Presley was influenced by a number of artists that exceeds well into the hundreds that have been said by fellow friends and family of Elvis in his younger days. He was mainly influenced by the country and western performers he saw live and also the rhythm and blues he would hear when visiting downtown memphis. He would also attend church and was influenced by alot of music there. He also was hugely influenced by gospel singers which triggered his base tempo style of voice in his later years.
Elvis admired all walks of music, so he mixed all these genres together and created his own unique sound which began his own style; rock n roll.