Sonia Rosa, a Brazilian singer who has been active in Japan for many years after contacting the father of Lisa Ono, who is widely known in Brazil. This work is her debut single in Japan in 1970. Side A of jazzy lounge bossa tune "Long Black Hair" tickled by broken Japanese, and B-side is a lively bossa Kayo style "Morning Coffee" with a flute tone. Both are amazing bossa tunes. Not included on the album released in 1970.