By proving she could handle a marquee turn on Broadway, this 1964 hit catapulted recording star Barbra Streisand into superstardom. The original cast album catches the young diva at a very special point in her vocal artistry; rarely has she sounded as in-the-moment and affecting. Handed brilliant material, she ran with it all. Her takes on showstoppers like “People,” “Don’t Rain on My Parade,” “I’m the Greatest Star,” “His Love Makes Me Dance,” and “The Music That Makes Me Dance” quickly became definitive, while “Rat-Tat-Tat” and “Sadie Sadie” demonstrated her natural flair for comedy. From here it was on to Hollywood, but this essential recoding captures all the qualities that made “Babs” the best in the league.