Lemonade is a lemon-flavored soft drink. In Germany, the UK, Australia, and New Zealand the term mainly refers to a colourless, carbonated, sweet soft drink containing either natural or artificial lemon flavor, such as Schweppes Lemonade. 7 Up and Sprite are similar but are lemon-lime flavoured and so arguably not lemonade.
R. White’s Lemonade is a brand of a carbonated soft drink, which is produced and sold in the UK by Britvic. In 1973 the popular Secret Lemonade Drinker advertising campaign was launched, devised by Rod Allen who wrote the slogan. The adverts featured the actor Julian Chagrin, dubbed with the voice of Ross MacManus (father of Elvis Costello). MacManus wrote the song, with his son providing the backing vocals.