1996 Event 6,138th performance of "Cats" is held in London, surpassing record of Broadway's longest-running musical, "A Chorus Line" 1975 Event "A Chorus Line," longest-running Broadway show (6,137), premieres 1973 Birthday Deborah Cox, born in Toronto, Canada, actress, singer, hit song, 'Nobody's Supposed to Be Here' was 'Billboard's' longest-running number one R&B and hip-hop single 1950 Event Longest-running prime-time game show, "What's My Line" begins on CBS 1918 Birthday Eddy Arnold, born in Tennessee, best-selling, longest-running, country music singer, helped create Nashville sound
