• Celebrate the 54 years since The Beatles landed at PDX for two Memorial Coliseum concerts with free admission to the Oregon Historical Society exhibit "Ladies and Gentlemen . . . The Beatles!" 10 a.m. to 5 p.m., 1200 S.W. Park Ave. www.ohs.org
• Hear life stories from musicians Mark and Helena Greathouse, 6 to 7:30 p.m., Garden Home Community Library annex, 7306 S.W. Oleson Road.
• Honor DJ OG ONE at the Hip Hop Fighting Cancer show, 8:30 to 10 p.m., Alberta Abbey, 126 N.E. Alberta St. Free. www.facebook.com/events/376318933080885/
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