The crossword solution for the term 'BELIEVE Pop Diva' is CHER, a four-letter word. Cher is an American singer, songwriter, actress and television personality who rose to fame in 1965 as part of the duo Sonny & Cher. She has since become one of the most successful solo female artists in music history, with hits such as 'BELIEVE' and 'If I Could Turn Back Time'. Her success has earned her numerous awards, including an Academy Award, a Grammy Award, and a Golden Globe Award.