and Manchester United
will not just be competing on the pitch at Wembley on Sunday.
Supporters of both clubs will also be in direct competition in the stands to see which set of fans can generate the most noise in the stadium.
Cup sponsors Carling have teamed up with Sky Sports to track crowd noise levels from both ends of Wembley as well as the pitch.
Spurs fans made plenty of noise when their heroes lifted the cup last season - but can they do it from the start this time around to get the better of United?
The readings will be based on a percentage share of the volume based on maximum decibel levels over 10-minute periods.
Fans inside Wembley will be updated four times during each half via digital advertising boards around the ground and a giant LED screen in front of the Royal Box.
The noise generated will raise valuable funds for the Bobby Moore Fund for Cancer Research UK with the donation rising in line with the volume level.
Carling has pledged £10,000 but the figure will increase to £15,000 if the decibel level hits 100 dB and £20,000 if it exceeds 110 dB.
The idea has been backed by Tottenham manager Harry Redknapp.
He said: 'If ever you need the fans to show their support it's at a big cup final and I know our fans will respond in the right way.
'There may have been times this season when they've maybe not felt much like singing but I'm sure they'll take the roof off at Wembley and help raise money for the Bobby Moore Fund which is such a great cause.'
Sky Sports executive producer for Sunday's showdown, Mark Pearman, said: 'The atmosphere at a Wembley Stadium cup final is always terrific and adds a great amount to the excitement of the event.
'During the live Sky Sports broadcast we will be monitoring the sound levels and letting the viewers at home see just how vocal the two sets of fans are against each other and who will out-perform who on the terraces.'
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