The song "Will You Still Love Me Tomorrow" was originally sung by the American girl group the Shirelles. It was first recorded in 1960 and released as a single in November of that year. This song became the first number-one hit by a girl group on the US Billboard Hot 100 chart. The music and lyrics were written by Gerry Goffin and Carole King. The Shirelles' version remains the most iconic rendition of the song, although it has since been covered by many other artists including Carole King herself, who recorded a slower version for her 1971 album "Tapestry".

Thus, the original and most famous singer of "Will You Still Love Me Tomorrow" is the Shirelles.