Most No.1 singles on UK chart - teenage female solo artist

Most No.1 singles on UK chart - teenage female solo artist
Who
Britney Spears, Billie Piper
Where
United Kingdom ()
When
Britney Spears (b. 2 December 1981) and Billie Piper (b. 22 September 1982) both have had three No.1 songs on the UK chart. Britney was aged 18 years 158 days when her single 'Oops! I Did It Again' reached the top on 7 May 2000 and, Billie was aged 17 years 242 days when her single 'Day Night'  became No.1 on  21 May 2000.