There will be two Hampden derbies next month with Celtic set to face Rangers while Hearts will face Hibs at the national stadium.
Ange Postecoglou and his team booked their place in the hat beating Dundee United 3-0 on Monday night.
It means these four teams make the semi-finals at the same time for the first time in Scottish football history
And to add to the tension both sets of rivals have been drawn to face one another.
The ties will take place on the weekend of 16/17 April and it's set to be a weekend of high drama and tension.
Rangers dismissed Dundee on Sunday to get this far while Hearts fought off St Mirren in the first quarter-final on Saturday night.
Hibs meanwhile got the better of Motherwell to set up the historic semi-final lineup.
It's the first time in history the four biggest teams from the two biggest cities have made the final four in the competition's illustrious history.
