Dave paused to pay tribute to his late friend and mentor Jamal Edwards, who died earlier this month at the age of 31.Though no specific cause of death has been formally confirmed, friends of Edwards have claimed (via Metro) that the influential British author, broadcaster, DJ and founder of SB.TV passed away from a heart attack. In a statement, his mother said Edwards had succumbed to a “sudden illness”.Dave was one of the many artists Edwards championed before his mainstream breakout, as he told fans at the O2: “Jamal Edwards is the reason I’m standing in front of you guys here today.