The crossword solution for the term 'Baby ('HAIR' song)' is ABIE, a four-letter word. The song 'HAIR' was released in 1979 by the American rock band Baby, which was formed in 1976 in Los Angeles, California. The song was written by lead singer and guitarist, John Vester, and was the first single from their self-titled debut album. It was a commercial success, reaching number one on the Billboard Hot 100 chart.