The 3BO FM 93.5 breakfast show host will be risking head and skin by making good on a losing bet and singing the famous Richmond Football Club theme song in Hargreaves Mall while dressed in a Tigers 'Onsie'.

He will perform the song at noon on Friday and breakfast show co-host Beck Chalmers has called on all Richmond supporters to give Cogho grief by turning up in their famous 'Yellow and Black' and never weaken til the final siren goes.

 ''It's time for Cogho to put his money where his big mouth is,'' she said.

''He angered a lot of Richmond supporters by suggesting they couldn't beat top team Sydney last week... now it's time for payback!''

Cogho's performance will coincide with the Fight Cancer Foundation's annual Footy Colours Day.

Footy Colours Day encourages people to show their true colours at the workplace, school or community organisation and make a donation in support of children and teenagers living with cancer.

For more information on the event click here