Dave Matthews was previously scheduled to perform at FireAid with John Mayer, playing live together for the first time.
Matthews had been set to take the stage at the Jan. 30 benefit concert in the wake of the devastating Los Angeles wildfires.
The singer also announced his inability to participate in the MusiCares Person of the Year benefit gala on Friday.
While expected to perform during FireAid, Dave Matthews announced he was backing out of the benefit concert due to family illness.
Matthews was scheduled to perform alongside John Mayer for the first time at FireAid, which will be held at the Kia Forum on ...