Heartlight reached number four on the Billboard Hot 100.
 A San Diego law championed by Pete Wilson in 1971 cited traffic safety and driver distraction as the reason for the billboard ban, but was narrowly overturned by the Supreme Court in 1981, in part because it banned non-commercial as well as commercial billboards
456 represents 123456/1000, or, in words, one hundred, two tens, three ones, four tenths, five hundredths, and six thousandths

