The Slender Gems will perform a concert from 5 to 10 p.m. July 10 at Shanahan's Pub and Grill, 209 W. McLoughlin Blvd., Vancouver. Proceeds will benefit Team Comfort Keepers, participating in the Walk to End Alzheimer's. Guests are encouraged to wear purple. Tips and $1 from each purple drink will benefit Team Comfort Keepers.