Bowie collaborators' tribute procession gathers hundreds in honour of late artist
Theatre producer Robert Fox worked with Bowie on stage play Lazarus
Square Enix are giving away the game in memory of Bowie
Blackstar, his latest, enters at number one
Donald's wife Katie gave birth on Tuesday
Bowie died on Sunday (January 10) at the age of 69
"He was boundary-changing and he danced to his own tune," says Elton
Fans asked to wear their "best Bowie outfit or something more strange"
Mike Garson accompanied Bowie at his last concert in 2006.