Damilola's father spoke of his sorrow at the loss of his son, who bled to death in a stairwell near his home after being stabbed.
Earlier, the Archbishop of Canterbury, Dr George Carey, paid tribute to the "loveable and intelligent" youngster.
And Mr Blair described Damilola as "remarkable young boy".
Two 15-year-old boys have denied murder. The trial has been set for January next year.
A single called Wake up the Morning featuring Gabrielle, Des'ree, Damage and Damilola's classmates was released this week.