The life of Florence Foster Jenkins — a tone-deaf socialite with a passion for singing — unfolds from the perspective of her longtime piano accompanist Cosme McMoon in Stephen Temperley’s Souvenir. Set in 1964, the semi-biographical play is driven by McMoon’s recollections of the many concerts they performed to a cult following — one that eventually grew so large the duo played a sold-out show at Carnegie Hall (reportedly one month before Jenkins died). While Jenkins (played by Ana Hernandez opposite Andrew Hendley as McMoon) and her hideous voice offer plenty of camp and comedy, the pair’s unlikely friendship acts as the glue that holds Souvenir together. Trivia: When Souvenir debuted on Broadway in 2005, The New York Times compared the real-world success Florence Foster Jenkins (1868-1944) enjoyed to that of American Idol reject and viral video star William Hung. $25-$29.50, 8pm Fri, Apr 29; 8pm Sat, Apr 30; 3pm Sun, May 1; The Cameo Theatre, 1123 E Commerce, (210) 212-5454, cameocenter.com. Through May 15.