With Parker's quintet, Davis recorded several times. He had a solo on Parker's signature song, "Now's the Time". This solo led to the beginning of a style of jazz called "cool jazz". The group also toured the United States. During a tour in Los Angeles, Parker had a nervous breakdown and went to the Camarillo State Mental Hospital for several months. Davis found himself stuck in L.A. He stayed with, and played music with jazz musician Charles Mingus. Later he got a job with Billy Eckstine on a California tour that brought him back to New York. In 1948, Parker returned from Los Angeles, and Davis joined his group again.