Now What (foaled 1937, in Kentucky) was an American Thoroughbred Champion racehorse. Her dam was That's That, and her sire was the 1927 American Horse of the Year and two-time Leading sire in North America, Chance Play. Now What served as a broodmare for Vanderbilt. Her most successful foal to race was Next Move, the 1950 American Champion Three-Year-Old Filly and the 1952 American Co-Champion Older Female Horse.