Sammallos has seen 4 concerts at The Observatory .

Date	Concert	Venue	Location
May 29, 2018	Subhumans / Final Conflict Subhumans Setlists	The Observatory	Costa Mesa, California, United States
May 25, 2018	GBH / Angelic Upstarts GBH Setlists	The Observatory	Costa Mesa, California, United States
May 02, 2018	The Fratellis / Blood Red Shoes The Fratellis @ Observatory Setlists	The Observatory	Costa Mesa, California, United States
Apr 14, 2018	Smut Peddlers / Radolescents / Hardship Anchors / 1034 Smut Peddlers 25th anniversary Setlists	The Observatory	Costa Mesa, California, United States