Di Queen don appoint every prime minister since Anthony Eden for 1955.
But Liz Truss go be di first she dey invite come Scotland.
Traditionally, di new PM go meet di Queen for London inside Buckingham Palace.
On Tuesday di monarch meet wit di next prime minister for Balmoral.
Di Queen ascend di throne for 1952, wen Winston Churchill be prime minister.
See di images of all di 15 leaders from her 70-year reign.
Winston Churchill 1951 – 1955
Anthony Eden 1955 – 1957
Harold Macmillan 1957- 1963
Alec Douglas-Home 1963 – 1964
Harold Wilson 1964 – 1970
Edward Heath 1970 – 1974
Harold Wilson 1974 – 1976
James Callaghan 1976 – 1979
Margaret Thatcher 1979 – 1990
John Major 1990 – 1997
Tony Blair 1997 – 2007
Gordon Brown 2007 – 2010
David Cameron 2010 – 2016
Theresa May 2016 – 2019
Boris Johnson 2019 – 2022
Liz Truss 2022