Chelsea will face Liverpool in the FA Cup final on May 5 after the Blues crushed Tottenham 5-1 at Wembley - albeit with the help of a goal which should never have been given.
Didier Drogba scored his seventh goal at this stadium to put the Blues ahead and they doubled their lead after the break when Juan Mata was credited with a goal even though replays showed the Spaniard's shot did not cross the line.
Spurs were incensed at referee Martin Atkinson's highly controversial decision yet pulled one back straight away through Gareth Bale.
But a cool finish from Ramires, a blistering 30-yard free-kick from Frank Lampard and a late fifth from Florent Malouda wrapped up a huge win for the west London club and piled yet more misery on Spurs boss Harry Redknapp.
After the game Chelsea captain John Terry felt his side deserved to win but admitted the second goal shouldn't have been given.
"I thought it hit me and stayed out but I haven't seen it on the replays," Terry told ITV.
"We've been calling for goal-line technology for a very long time.
"Let's hope that people make the right decisions.
"It was an important game today and fortunately it went our way. Throughout the season things go with you and go against you and today it's gone with us and we're delighted.
"I thought we were the better side and scored some great goals."
Tottenham captain Ledley King called into question Atkinson's decision to award the controversial goal.
"Obviously I haven't seen it again but from where I was I didn't think it crossed the line," King said.
"The referee said he made the decision and I find it hard to believe he could see it from where he was.
"There's nothing you can do. He makes the decision and it's a massive decision at the end of the day.
"You expect the linesman to have made it. At 2-0 down you know it's going to be a tough game against Chelsea.
"We got ourselves back in the game at 2-1 and we've just been caught out trying to get that second goal and we've been picked off."