I Write the Songs

``I Write the Songs'' is a popular song written by Bruce Johnston in 1975 and made famous by Barry Manilow. Manilow's version reached number one on the Billboard Hot 100 chart in January 1976 after spending two weeks atop the Billboard adult contemporary chart in December 1975. It won a Grammy Award for Song of the Year and was nominated for Record of the Year in 1977. Billboard ranked it as the No. 13 song of 1976.

Question: did david cassidy write i write the songs
Answer: no