Bill Cowsill, American singer-songwriter and guitarist (died 2006)

William Joseph Cowsill Jr. was an American singer, musician, songwriter, and record producer. He was the lead singer and guitarist of The Cowsills, who had three top-10 singles in the late 1960s. From the mid-1970s until his death, he was a successful alt-country artist and producer in Canada.

January 9 is the ninth day of the year in the Gregorian calendar; 356 days remain until the end of the year.