We know 'Prince' was looking forward to a party, the whole world was expecting a computer crash and certain sectors of society predicted Armageddon - but the Welsh Rugby Union wants to know exactly what rugby fans were doing in 1999.
The Millennium Stadium is celebrating the 10th anniversary of its existence this year and, as part of the celebrations, we want to hear your stories as they relate to what was an eventful year in Welsh rugby.
On the 26th June 1999 we played our first game of rugby at the Millennium Stadium in a now legendary match which saw us beat South Africa for the first time in our illustrious rugby history.
Mark Taylor was the toast of the town after scoring the first try under our new retractable roof, but do you recall what you were doing that day? Maybe you were in a maternity ward and named your firstborn after Mark or the then coach Graham Henry? Maybe you missed the game altogether because of your wedding.
What were you doing on the 1st October 1999, when Wales kicked-off the Rugby World Cup in front of a 74,500 capacity crowd against Argentina - will you be back this year when the Pumas return to the scene of their demise in 1999.
Did you make it to the Manic Street Preacher's concert on Millennium Eve or the Songs of Praise event the next day? Maybe you proposed in the Millennium Stadium at an event in 1999 or met your future wife or maybe you simply have an amusing story from that year which includes our removable pitch or retractable roof.
If you have a story we want to hear it, we promise to post the best ones back on our website and, if we are really inspired by your story, who knows we may want to ask you back to the Millennium Stadium to tell it in person at one of our anniversary events of 2009.
All roads lead to Cardiff on Sunday for the SSE SWALEC Finals Day at the Millennium Stadium. Cambrian Welfare tackle Ystradgynlais in the Bowl final, Ystrad Rhondda play Newcastle Emlyn in the Plate final while defending champions Pontypridd face Bridgend in the Cup final.
WRU Chief Executive Roger Lewis, Deputy Minister for Culture, Sport and Tourism Ken Skates and WRU Chairman Gareth Davies earlier this week launched a new competition in conjunction with the WRU unveiling its archive room.
Welsh players and management joined Deputy Minister for Sport Ken Skates at the Pierhead Building, Cardiff Bay earlier this week to reveal the Union's pioneering school-club hub initiative has been so successful the project will now almost double the scale of the original project.
The Scarlets, Newport Gwent Dragons, Cardiff Blues and the Ospreys look ahead to Judgement Day III which sees the Blues take on the Ospreys (2.30) and the Dragons tackle the Scarlets (4.45pm) at the Millennium Stadium tomorrow afternoon.
Ystradgynlais and Ynysddu played out a titanic struggle at Taffs Well in the SSE SWALEC Bowl semi-final. At the end of the game neither team could be separated after a 15-15 stalemate but Ystradgynlais go through on try count.
Blues strike first in JD III battle - Newport Gwent Dragons lock Andrew Coombs, WRU referee Dylan Llyr Jones and Cardiff Blues hooker Matthew Rees decide dressing room allocations for Judgement Day III
Wales Under 18 captain Calum Haggett has received a conditional offer to read Biomedical Science at St Anne's College, Oxford. WRU chairman Gareth Davies went to meet Calum and Coleg y Cymoedd Principal Judith Evans to wish him luck in his exams and pass on some of his personal experience.