The Crystals are an American vocal group based in New York, considered one of the defining acts of the girl group era in the first half of the 1960s. Their 1961–1964 chart hits, including "There's No Other (Like My Baby)", "Uptown", "He's Sure the Boy I Love", "He's a Rebel", "Da Doo Ron Ron (When He Walked Me Home)" and "Then He Kissed Me", featured three successive female lead singers, and were all produced by Phil Spector.