The answer is:
Stevie Wonder
1984 saw the release of Wonder's soundtrack album for The Woman in Red. The lead single, "I Just Called to Say I Love You", was a #1 pop and R&B hit in both the United States and the United Kingdom, where it was placed 13th in the list of best-selling singles in the UK published in 2002. It went on to win an Academy Award for "Best Song" in 1985.