question:  Randolph Peter "Pete" Best has been referred to as an informal title with claims first appeared in the press immediately upon the band's rise to what?
answer: global fame
context: Title: Fifth Beatle
  Passage: The fifth Beatle is an informal title that various commentators in the press and entertainment industry have applied to people who were at one point a member of the Beatles, or who had a strong association with the "Fab Four" (John Lennon, Paul McCartney, George Harrison, and Ringo Starr) during the group's existence.  The "fifth Beatle" claims first appeared in the press immediately upon the band's rise to global fame in 1963–64.  The members have offered their own beliefs of the "fifth Beatle":
  Title: Jatin Kanakia
  Passage: Jatin Kanakia (28 June 1952 – 18 July 1999) was an Indian actor.  Best known for comedy roles, his career ranged from working in Gujarati plays, Hindi television shows and Hindi Bollywood movies.  His skill and success earned him the informal title of being the "Prince of Comedy."
  Title: Pete Best
  Passage: Randolph Peter "Pete" Best (born Randolph Peter Scanland, 24 November 1941) is an English musician, principally known as an original member and first drummer of the Beatles, from 1960 to 1962.  He has been referred to as the Fifth Beatle.
  Title: Josephine Bradley
  Passage: Josephine Bradley MBE (24 March 1893 – 16 February 1985) was a ballroom dancer and dance teacher.  Although born in Dublin, she was raised from an early age in London, the youngest of eight children.  Bradley was among the first ballroom dance professionals of the Imperial Society of Teachers of Dancing (ISTD) who standardised the basic techniques of foxtrot, tango, quickstep and waltz.  These are the English ballroom dances of what is now the World Dance Council's International Dancesport category.  For her activities she had earned herself an informal title "The First Lady of the Ballroom".
citations: Fifth Beatle Pete Best