This month in 1988, Carly's “All I Want Is You” reached its peak at #54 on the Billboard Hot 100. The song spent nine weeks on the chart and remains a sparkling late-’80s gem in her catalog. One of the most memorable performances of the song didn’t happen onstage, but in the Helen Hayes suite at the Milford Plaza Hotel, for Late Night with David Letterman. Yes, a hotel suite. Watch the unforgettable (and wonderfully unconventional) performance here. #CarlySimon #DavidLetterman | Carly Simon