"This will be the last time l'll allow production challenges to look like the fault is mine alone, when they aren't,” the Grammy winner said

The Essence Festival has taken responsibility for a Lauryn Hill performance that saw the hip-hop legend take the stage at 2:30 in the morning."Let's be very clear — WE don’t play about Ms. Lauryn Hill.

Opening night of the annual New Orleans event featured an overstuffed lineup and was beset by scheduling problems