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You Are the Sunshine of My Life  is a 1973 single released by Stevie Wonder.
On September 24th 1977, Debby Boone performed You Light Up My Life on the ABC-TV program 'American Bandstand'... At the time the song was at #21 on Billboard's Hot Top 100 chart; three weeks later on October 9th it would peak at #1 {for 10 weeks} and it stayed on the chart for almost a half-year {25 weeks}...