The singer has teamed up with Lucky Voice, who will open their venues at 12pm on Saturday, October 27 where fans can hold their own 'Candy' single launch parties.
© Rex Features
"I know a lot of my songs are big hits at karaoke so I'm chuffed to be taking over Lucky Voice for a whole day," Williams said in a statement.
"I hope you're all going to do me proud and go mental!"
Participants will sing along to a special playlist of tracks selected by the star, including a never-before-heard track from his new album Take The Crown.
Two people who participate on the day will win a pair of tickets to one of his London O2 shows, which sold out in less than an hour after being announced earlier this month.
To take part either at a Lucky Voice venue or online at home, fans should pre-register in advance at www.luckyvoice.com/robbie, then turn up with their e-ticket from midday on October 27 or log on to luckyvoice.com/sing
Williams releases 'Candy' on October 28. Watch the official music video below:
