The fan party takes place from 20:00 local time on 8 March at Space O, Shibuya, where there will be a live screening of United's game against West Bromwich Albion at The Hawthorns (kick-off 21:45 local time).
During #IAMUNITED, fans will also get the chance to meet Treble-winning striker Cole and see the Barclays Premier League trophy, which United won for the 20th time last season.
With free tickets for the event to give away, the club is challenging the fans who attend to create an atmosphere to challenge that at Old Trafford.
Fans who wish to apply for tickets (up to a maximum of four) must register here before the end of Friday 28 February to be entered into a ballot. The lucky fans will then be selected at random and contacted by email.
Find more news and features from previous IAMUNITED events.