Deborah Cox (born July 13, 1974 in Toronto, Ontario) is a Canadian R&B singer-songwriter and actress. Cox's 1998 song "Nobody's Supposed to Be Here" held the record for longest-running number one single on Billboard's Hot R&B/Hip-Hop Songs chart (14 weeks), a record held for nearly eight years until Mary J. Blige's "Be Without You" notched a 15th week at number one in 2006. Cox has achieved nine number-one hits on Billboard's Hot Dance Club Play chart. Career Deborah Cox began singing for TV commercials at age 12, and she entered various talent shows with the help of her mother. She performed in nightclubs as a teenager, and she also began to write music around the same time.[LINK: http://www.billboard.com/bbcom/bio/index.jsp?pid=139109] Biography - Deborah Cox Billboard. Accessed on December 5, 2007 Cox entered the music industry as a backup vocalist for Celine Dion, and after signing to Arista Records,