The reason for it is the phrase "Two Too Know" , which actually found its way into the Oxford Book of Fine Verse, despite the song being controversial as it was about a man whose "strange hobby " was stealing ladies' underwear from washing lines at night for his own nefarious purposes. The wiki link is here.
Anyway, in the rest of the news, the weather is good, and I may have a wander along to day two of the Green Festival as the weather is gorgeous again. Just realised over the last two weeks, the weather has been gorgeous over the weekends and rubbish during the week, just what you want for any normal person.