Cobra Records was an independent record label that operated in Chicago from 1956 to 1959 and launched the careers of Chicago blues artists Otis Rush, Magic Sam and Buddy Guy, a new generation who pioneered the West Side Sound.

Otis Rush Jr. was an American blues guitarist and singer-songwriter. His distinctive guitar style featured a slow-burning sound and long bent notes. With qualities similar to the styles of other 1950s artists Magic Sam and Buddy Guy, his sound became known as West Side Chicago blues and was an influence on many musicians, including Michael Bloomfield, Peter Green and Eric Clapton.