Simon and Garfunkel classic Mrs Robinson enjoys renewed popularity

A political crisis has erupted over Iris Robinson's private life and financial affairs after it was disclosed she had an affair with a toyboy lover young enough to be her grandson. First Minister Peter Robinson has temporarily stepped down. (Paul McErlane/Getty Images)

Simon and Garfunkel classic Mrs Robinson is enjoying a popularity revival due to an internet campaign to push the song to number one - "in honour of Northern Ireland's disgraced First Lady".

A campaign group mobilised on Facebook to propel the song from Dustin Hoffman movie The Graduate to the top spot has almost 13,000 members.

The film tells the story of a college graduate who embarks on an affair with an older woman.

A political crisis has erupted over Iris Robinson's private life and financial affairs after it was disclosed she had an affair with a toyboy lover young enough to be her grandson. First Minister Peter Robinson has temporarily stepped down.

The track had climbed to number 23 in Amazon.co.uk's "bestsellers in MP3 songs" by today - but it still has some way to go to hit the top spot - sitting at 165 in the charts midweek.

The power of internet campaigns was shown at Christmas when Rage Against The Machine were sent to number one - at the expense of X Factor winner Joe McElderry.