The veteran rockers postponed their farewell tour nearly seven months ago after singer Steven Tyler "fractured his larynx," CNN reports. The band issued a statement about Tyler's condition at that time. "To our fans: Unfortunately, Steven's vocal injury is more serious than initially thought. His doctor has confirmed that in addition to the damage to his vocal cords, he fractured his larynx which requires ongoing care.", "He is receiving the best medical treatment available to ensure his recovery is swift, but given the nature of a fracture, he is being told patience is essential."