text: Sleepless nights leading to the general election appear to have affected  David Cameron's memory after Prime Minister made an embarrassing gaffe by forgetting which team he supports. Speaking at an event in south London, the PM claimed to be a West Ham supporter - despite previously stating that he followed Aston Villa. 'You can support Man Utd, the West Indies and Team GB all at the same time - of course I'd rather you supported West Ham,' he said during a speech on ethnic minorities. Prime Minister David Cameron had brain fade after getting his claret and blue teams mixed up . The Conservative Party leader told an audience he was a West Ham fan, despite supporting Aston Villa . The Tory leader has since apologised, blaming a bout of 'brain fade' - perhaps he became confused since both sides wear claret and blue colours. 'I had what Natalie Bennett described as a brain fade,' he said. 'I'm a Villa fan ... I must have been overcome by something ... this morning. But there we are, these things sometimes happen when you are on the stump.' West Ham were quick to respond after tweeting Cameron to vote for his favourite player with the message: 'don't forget to vote in another important election! Who is your Hammer of the Year, Prime Minister?' Cameron said: 'I'm a Villa fan ... I must have been overcome by something ... this morning.' The PM was overjoyed when Christian Benteke (left) helped Villa reach the FA Cup final . Cameron attended his first match at Villa Park as a 13-year-old after being taken by his uncle, former Villa chairman Sir William Dugdale. In a TV interview in 2008, Cameron told GMTV: 'The first game I ever went to was an Aston Villa game and so I am an Aston Villa fan.' And, the Conservative leader was enthusiastic after Aston Villa defeat Liverpool in the FA Cup semi-finals. 'It was a tremendous game with Benteke and Delph doing Villa proud, against the odds. I can't wait to watch the final at the end of May,' he said.
target: David Cameron claims he is a West Ham fan during a speech .
  The Prime Minister has previously said he supported Aston Villa .
  The Tory leader apologised, saying he experienced 'brain fade'