The crossword solution for the term 'Singer Lady ___' is GAGA, which is a four-letter word. Lady GAGA is an American singer, songwriter, and actress who has achieved worldwide fame for her unique style of music and fashion. She has released five studio albums and won numerous awards, including nine Grammy Awards. Her most successful single, 'Bad Romance, ' was released in 2009 and topped the charts in more than 20 countries. Lady GAGA is one of the best-selling music artists of all time, with over 150 million records sold worldwide.