Heidi Klum has been planning her Halloween costume since June.

The 44-year-old model has become known for the stunning and intricate costumes she dons for the spooky holiday celebrated on October 31, and the beauty has now revealed she spends four months getting everything ready before the big night.

She said: ''I like to keep it fun, you know. I usually start planning in June. It's not just going to be just getting dressed easily, I always have a lot of prosthetics done with these amazing people that do this for me.''

The 'Project Runway' host - who hosts her own star-studded Halloween bash each year - is upping the ante this year after wowing in 2016 with a costume comprised of five clones of herself, as although she won't reveal what her costume will be, she has said she'll spend a gruelling six hours gluing her outfit together.

Speaking during an appearance on 'Late Night With Seth Meyers' on Monday (30.10.17), she said: ''Tomorrow I'm going to be there for six hours gluing all this stuff on. I have a lot of stuff being glued, yeah. Because last year I didn't do anything, I was me with five clones, which I thought was just a fun idea.''

Last year, Heidi hired five other women to accompany her to her party, who all donned synthetic replicas of her own face to create an army of Heidi Klums.

Speaking about her costume at the time, she said: ''This came about because everyone always says, 'How do you juggle it all? How do you juggle it all?' I'm always thinking, 'I wish there were more of me so I could have it much easier.' One could stay at home, the other one could go work! So that's how it happened! It's six-times me today!''

Previously, the 'America's Got Talent' judge also stunned party-goers in a prosthetic heavy Jessica Rabbit costume.