April 23rd:
1970 - Jimmy Page - London, England @ BBC TV Studios, Lime Grove.
1977 - Led Zeppelin - Atlanta, Georgia @ The Omni.
1985 - Jimmy Page - Bloomington, Minnesota @ Metropolitan Sports Center
1986 - Jimmy Page - Atlanta, Georgia @ The Omni
2001 - Robert Plant - Copenhagen, Denmark @ Amager Bio
2008 - Robert Plant - Chattanooga, Tennesse @ Chattanooga Memorial Auditorium
2011 - Robert Plant - Los Angeles, California @ Greek Theatre