The team is also famous for its Scottish Cup victories over Celtic in 2000 and 2003: winning 3-1 at Celtic Park, resulting in the memorable headline "Super Caley Go Ballistic Celtic Are Atrocious" in The Sun which is now framed in the foyer of Caledonian Stadium, and 1-0. Caley Thistle have also knocked other SPL teams out of cup competitions, including Motherwell and Hearts. Over the first ten years of their existence ICT had been responsible for a total of 11 'shocks' and as a result had gained themselves a reputation as being 'giant killers', but following their promotion to the SPL, they have now joined the ranks of the 'giants' themselves.
Caley Thistle's run of famous cup victories over Celtic came to an end following 2 goals in the last 4 minutes of their fifth round tie held at Caledonian Stadium on 25 February 2007 after the home side had led 1-0 for the majority of the game thanks to a Graham Bayne goal.
Another significant recent event has been the signing of Romanian international Marius Niculae, who will become the first Romanian to play in the Scottish league system.