Answer:
ring a ring o roses
Explanation:
Ring a Ring o' Roses" or "Ring a Ring o' Rosie" is an English nursery rhyme or folksong and playground singing game. It first appeared in print in 1881, but it is reported that a version was already being sung to the current tune in the 1790s and similar rhymes are known from across Europe. It has a Roud Folk Song Index number of 7925.
