Ledley eventually lifted the trophy after the 2-1 victory against Chelsea while 'JJ' was in outstanding form throughout - arguably saving his best performances in a Spurs shirt for the two legs of the semi-final against Arsenal in that campaign.
The pair re-united for a Spurs TV special as part of our Matchday Show - our groundbreaking, exclusive digital broadcast from Wembley ahead of Sunday's final.
They spoke for over an hour - and here's an excerpt on their thoughts on the 2015 final...
Ledley: "The team has shown this is a game they can win."
JJ: "The players have no reason to be going into the game fearful, although for many of them it will be their first cup final, their first experience of that huge, huge game, but they have shown they can handle the pressure of a big game. We have players in form as well. They just have to - and it sounds like a bit of a cliché - play the game and not the occasion and I’m pretty sure they will be fine on the day."
Ledley: "You are right. I think it helps that it’s a team we’ve beaten, so the confidence will be there going into the game. If the players do perform, knowing it’s a game you can win. It’s similar to when we played Chelsea in 2008, we’d had a couple of good results against them and we believed we had their number a little."
JJ: "There was no fear."
Ledley: "I wouldn’t say the team would feel like that at this time but the result we had at home on New Year’s Day means the confidence has to be there going into this game."
JJ: "I think the key players for us, if they perform on the day, the likes of Kane, Mason is a huge figure because he’s a midfielder who takes risks, passes the ball forward, makes runs - he will score more goals. If those two, Hugo, Jan, who has been brilliant all season, if they perform, the result should follow."
Ledley: "Let’s hope so, fingers crossed!"