On 7 September 1976, Clapton wrote "Wonderful Tonight" for Boyd while waiting for her to get ready to attend Paul and Linda McCartney's annual Buddy Holly party. Of "Wonderful Tonight", Boyd would say: "For years it tore at me. To have inspired Eric, and George before him, to write such music was so flattering. 'Wonderful Tonight' was the most poignant reminder of all that was good in our relationship, and when things went wrong it was torture to hear it."
It was also featured in "The One With the Proposal Part 2" (18 May 2000) in season 6 of the famous TV show Friends. It shows Monica and Chandler dancing to it at the end of the episode after getting engaged.
Clapton and Steve Winwood performed an acoustic version of the song during their 2011 tour in Japan.
^ abChris Smith (2006). Greenwood Press, ed. The Greenwood Encyclopedia of Rock History: From arenas to the underground, 1974-1980. p. 102. ISBN978-0313336119. "the hard-rock pioneer and guitar god also become a soft-rock star in the mid-1970s. He celebrated his sobriety with (...) the Top 5 hit "Lay Down Sally" and hit No. 16 with the ballad "Wonderful Tonight," both off his 1977 Slowhand album"