<P> A bomb scare at Old Trafford on the final day of the Premier League meant that Manchester United's game with Bournemouth had to be called off, eventually being rearranged for the following Tuesday, 17 May . The incident meant that United had four days to prepare for the final, two days less than Crystal Palace . </P> <P> Each club received an allocation of 28,780 tickets . This was an increase on previous seasons from 71% of available seats for supporters of the two opposing teams to 80% . All tickets prices were also reduced by £ 5 each . </P> <P> An inaugural tournament was held on 7 May in which a fan of each of the 64 teams who reached the third round competed in a knock - out football video game tournament in rooms around Wembley Stadium . The prize was tickets to the actual final . </P> <P> Tinie Tempah performed his songs "Girls Like" and "Written in the Stars" alongside The Lewisham and Greenwich NHS Trust Choir and DJ Charlesy ahead of kick - off . The national anthem was song by Karen Harding . </P>

When was the last time crystal palace beat manchester united