AVENGED SEVENFOLD frontman M. Shadows revealed to Kerrang! magazine that he underwent surgery earlier this year to correct a joint problem that left him in agony during the band's live performances. He said, "I had knee surgery because I was in pain all the time; I was wearing knee braces onstage. But finally it's fixed."AVENGED SEVENFOLD's headlining "Buried Alive" tour launched in Ft. Meyers, Florida on November 23 and concluded this past weekend in California. HOLLYWOOD UNDEAD, ASKING ALEXANDRIA, and BLACK VEIL BRIDES were also on the bill, offering fans an incredible value with four of the hottest bands in rock today. The tour took its name from "Buried Alive", the fourth single from the Huntington Beach, California rock band's gold album "Nightmare". All three previous singles from "Nightmare" — the title track, "Welcome to the Family" and "So Far Away" — have peaked at No. 1 on the Active Rock chart. Released worldwide in July 2010, "Nightmare" earned AVENGED SEVENFOLD its highest-ever debut on the Billboard album chart when it bowed at No. 1 and topped Billboard's Rock, Hard Rock, and Digital charts. The title track was the most played song at Media Base Active Rock for 2010.