The Weekend Guide

This weekend, there’s good reason to party like it’s 1999.

Crumble (Lay Me Down, Justin Timberlake)
What: A sweet play about the tumultuous journey of a mother and daughter getting over a death in the family.
Why: Cry us a river.
When: Nov. 4-Dec. 10; Thurs.-Sat., 8 p.m.
Where: La Val’s Subterranean Theater, 1834 Euclid Ave., at Arguello Blvd., Berkeley (510-464-4468).

Purple Rain
What: Sing along to Prince’s infamous movie.
Why: U would die 4 him.
When: Fri. & Sat., midnight.
Where: Bridge Theatre, 3010 Geary Blvd., b/t Blake & Cook Sts. (415-751-3213).

Jacqui Naylor at the San Francisco Jazz Festival

What: Local music darling sings jazz classics over rock tunes and vice versa.
Why: And all that jazz.
When: Sun., 2 p.m.
Where: Legion of Honor’s Florence Gould Theatre, 34th Ave., at Clement St. (415-788-7353).

Bakesale Betty

What: Sticky date pudding, banana bread, and lemon bars at Aussie’s new outpost.
Why: Get baked.
When: Sun., 7 a.m.-2 p.m.; Mon., 7 a.m.-4 p.m.; Tues.-Sat., 7 a.m.-7 p.m.
Where: 5098 Telegraph Ave., at 51st St., Oakland (510-289-5505).

Native Plant Sale

What: Get help picking out flora that were literally meant to grow in your backyard.
Why: No green thumb necessary.
When: Thurs., 7:30 p.m.
Where: County Fair Building, 9th Ave., at Lincoln Way (415-752-7031).