Jamal Edwards, who died on Sunday at the age of 31, was credited with helping to launch a string of UK music acts to stardom, including Ed Sheeran, Dave and Jessie J.
Photos showed how hundreds of people gathered on Acton high street in west London on Monday night to pay their respects to the star in front of a mural of him.
Brenda Edwards sang the Whitney Houston hit Greatest Love of All to hushed crowds who gathered to remember the music impresario s life, after his sudden death aged 31.