VIVA LA USA!—The Waterfront Park Cinco de Mayo festival starts on Saturday, but the best event is saved for the big day itself: the naturalization ceremony at noon, where new Americans are sworn in as citizens! What better way to spend your first 12 hours as a real American than getting drunk on margaritas by the river, dancing to live mariachi and reggae bands? SM
Tom McCall Waterfront Park, SW Harrison & Naito, 11 am-11 pm, $6, all ages
PARTY—Known for their lively, energetic shows, the members of Los Campesinos! are bringing their party to Portland for a night of sing-alongs about breakups and heartbreaks—but this show is for dancing, so be sure to check your broken heart at the door. BT
w/Signals; Hawthorne Theatre, 1507 SE 39th, 8 pm, $15, all ages
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