Using a Facebook account, supporters who attended the game against the Latics can find and tag themselves in the crowd, pick out their friends and invite others to join.
Those who were not at the stadium on this occasion can still take part by selecting the 'Wish You Were Here' option and uploading a picture to the virtual stadium. The first 1,500 to do this will be added to the Kop.
A selection of great prizes are on offer too, including an LFC membership, a subscription for LFC TV Online and two tickets for Legends Day on December 21.
To be in contention, answer the trivia questions and find the four Liverpool legends we have hidden - John Aldridge, Alan Kennedy, Jan Molby and Phil Thompson.