JOIN The News for live coverage of Heroes Day as people of all ages dress up as their heroes for an extraordinary fundraiser in memory of a fallen marine.
There is a party atmosphere as people at schools, colleges, businesses and local councils are spending the day in fancy dress.
The aim of Heroes Day is to raise as much as cash as possible for the charity Help for Heroes.
People have turned up for work or school in all kinds of outfits - from soldiers, to Admiral Lord Nelson, to suffragettes.
Some have even come as their mum, dad or a grandparent.
The day is in memory of Royal Marine Richard Hollington, who attended Purbrook Park School and tragically died after a bomb blast in Afghanistan last year.
Pupils at his old school are dressing up as people they admire and his father Robin Hollington, from Petersfield, will also be giving assemblies, talking to young people about what makes a hero.
Also in Havant area, people are dressing as their idols at Staunton Country Park, Havant Borough Council, Havant Academy, Horndean Infant School, Tesco Extra, Sharps Copse Primary School and Warblington School.
Over in Portsmouth, businesses taking part include Vane Recruitment and Larcomes Solicitors, as well as scores of children at Northern Parade Junior School.
Teachers at Highbury College have also turned up for work in fun costumes.
In Petersfield, staff at East Hampshire District Council are spending the day emulating their heroes, while over in Fareham, pupils at Titchfield Primary School are getting into the spirit of things.
Danny Glavin, the friend of Mne Hollington, from Fareham, who invented The Heroes Day concept, said he was overwhelmed by the public’s response.
He said: ‘It really is a tribute to the sacrifice my friend Richard made.’
The Heroes Day fun is set to continue tomorrow as Portsmouth FC are asking supporters to dress as their heroes for the match against Doncaster.
Charity buckets will be out to give supporters a chance to donate.
A club spokesman said: ‘Heroes Day is a fantastic initiative for a really worthy cause.
‘We think it’s really important to throw our weight behind it.
‘It’s a brilliant initiative.’
There are more than 200 organisations taking part in the fundraiser across the country - equating to more than 30,000 people.