Boxing legend Muhammad Ali's funeral will be screened on two giant screens live outside The O2 tomorrow (10 July) from 7pm.
Ali, who died on 3 June, had strong ties with London, and is currently the subject of a major exhibition at The O2.
Those who wish to pay homage to Ali can leave flowers or sign a book of condolence at The O2's I Am The Greatest exhibition.
Ali's funeral is to take place in his hometown of Louisville, Kentucky, with actor Will Smith and former world heavyweight champion Lennox Lewis among the pallbearers.
We went to I Am The Greatest: Muhammad Ali earlier this year. Here's what we thought.