Effie Smith was an American blues and R&B singer, most active during the mid-20th century. She was known for her powerful voice and emotive performances, which resonated with the raw energy of blues and the upbeat rhythms of R&B. Smith's most significant contribution to music history was her 1958 hit "Dial That Telephone," which showcased her distinctive vocal ability and set a precedent for future female blues singers. Despite her limited discography, Smith's influence can be felt in the genres of blues and R&B, particularly in the emphasis on emotive, powerful vocal performances.