Sports Correspondent Simon O'Rourke was at Wembley with Sunderland fans for ITV News Tyne Tees.
Thousands of fans have travelled to Wembley. The Black Cats are the underdogs - but this is Sunderland, and anything could happen.
Cup Final fever has been sweeping across Sunderland as fans and the club head to Wembley hoping to achieve a historic victory once more.
Sergio Aguero is expected to return to the Manchester City side for today's League Cup Final against Sunderland.
He has been absent for five games with a hamstring problem.
The Argentinian target man will be eager to get on the scoresheet against the Black Cats this afternoon.
Sunderland are getting ready for their League Cup Final clash against Manchester City.
The Black Cats will face a tough challenge against Manuel Pellegrini's formidable and expensively-assembled team.
The game kicks off at Wembley at 2pm.
The red and white army is on the move again.
Sunderland fans met at around 5am to board coaches to Wembley.
They'll be flooding the stands there later, daring to dream they'll be returning to Wearside with the trophy.
Sunderland fans descended upon Covent Garden in central London last night ahead of their team's League Cup final against Manchester City at Wembley Stadium today.
Sunderland fans have taken over Covent garden http://t.co/umE6j3253p
The aftermath of Sunderland fans in Covent Garden, this street probably had the least rubbish of all ? http://t.co/vSNNgTiv0g
Sunderland will feel the shadow of history behind them today as they battle Manchester City in the League Cup Final.
Bob Stokoe led the Black Cats to FA Cup glory in 1973. A statue outside the Stadium of Light remembers the legendary manager.
Sunderland manager Gus Poyet says no football fan in the country - except Black Cats fans - would have predicted at the start of the season that they would reach the League cup final.
Tomorrow, the red and white army will flood the Wembley stands as Sunderland take on Manchester City.
And fans are daring to dream Poyet's man will be bringing the trophy back to Wearside for the first time in more than 40 years.
Winger Adam Johnson believes Sunderland will have to beat the best team in the Barclays Premier League to seal Capital One Cup glory.
The Black Cats face Johnson's former employers Manchester City in the final of the competition at Wembley on Sunday.
He has no doubts about the quality of the opposition he and his team-mates will face this weekend, but having played in City sides which have at times struggled to beat Sunderland, does not fear the challenge.
Johnson said: "For me, they have the best squad in the league by far and it's going to be difficult, we all know that.
"But we have beaten them once already this season and we have had quite a good record in recent years against them.
"I remember being in the City side a few times coming here and struggling, so hopefully it will be like that again.
"We all know it's a massive, massive task for us, but it's a cup final and so many times over the years, it's not as simple as everyone expects it to go."
Sunderland have, in fact, beaten City on each of their last four league visitors to Wearside, and came within five minutes of a famous victory at the Etihad Stadium in March 2012 when goals from Mario Balotelli and Aleksandar Kolarov snatched a draw for the home side.
Tyne Tees last filmed with Brian Wallace in 1973.
He was a DJ, who was entertaining crowds on Wearside during Sunderland's Wembley win more than 40 years ago.