"I Just Called to Say I Love You" is a ballad written, produced, and performed by American R&B singer and songwriter Stevie Wonder. It was a major international hit, and remains Wonder's best-selling single to date, having topped a record 19 charts.

Stevland Hardaway Morris, known professionally as Stevie Wonder, is an American-Ghanaian singer-songwriter, musician, and record producer. He is credited as a pioneer and influence by musicians across a range of genres that include R&B, pop, soul, gospel, funk, and jazz. A virtual one-man band, Wonder's use of synthesizers and other electronic musical instruments during the 1970s reshaped the conventions of contemporary R&B. He also helped drive such genres into the album era, crafting his LPs as cohesive and consistent, in addition to socially conscious statements with complex compositions. Blind since shortly after his birth, Wonder was a child prodigy who signed with Motown's Tamla label at the age of 11, where he was given the professional name Little Stevie Wonder.