Five things to do in Brooklyn this week!

Friday

June 12

Que Cera, Cera

Come to rock or just to gawk. Michael Cera, the adorkable lead in “Scott Pilgrim” and “Superbad” plays twee indie rock alongside Alden Penner of The Unicorns as part of the Northside Festival.

11 pm at Knitting Factory [361 Metropolitan Ave. at Havermeyer Street in Williamsburg, (347) 529–6696, bk.knittingfactory.com]. $15.

Saturday

June 13

Teeny weenie

The wee willy competition is back! Diminuitive dudes compete today at the Smallest Penis in Brooklyn Pageant, complete with a talent, swimwear, and formal attire competition.

Made his Markie: Rapper Biz Markie plays a free show at Herbert Von King Park on June 17.

City Parks Foundation

2:30 pm at Kings County Saloon [1 Knickerbocker Ave. at Johnson Avenue in Bushwick, (347) 987-3751, www.kingscountysaloon.com]. $10 ($5 in advance).

Sunday

June 14

Little orphan DJ

The hard-knock life eases up a little at this SummerStage event aimed at kids, featuring 11-year-old DJ Fulano spinning records and a screening of 2014’s “Annie.”

7 pm at Betsy Head Park (Bristol Street between Blake and Dumont avenues in Brownsville, www.cityparksfoundation.org/summerstage). Free.

Did Juno he could sing?: Actor and (apparently) musician Michael Cera plays at the Knitting Factory on June 12.

Associated Press / Victoria Will

tuesday

June 16

Unseen university

Uncover the hidden history of Brooklyn and other, lesser boroughs in “The New York City You’ve Never Seen,” a virtual tour of little-known spots from sightseeing guide Richard Exelbert.

6:30 pm at Brooklyn Brainer [190 Underhill Ave. between Sterling and St. Johns places in Prospect Heights, (347) 292–7246, www.brooklynbrainery.com]. $10.

Wednesday

June 17

Not just a friend

Beloved rapper, beatboxer, and “Sharknado 2” bit player Biz Markie performs with Brownsville rapper Masta Ace. I can only assume that this evening will end with everyone in the park coming together to belt out “YOOOOUUUU! You got what I NEEED!”

Put a little spin on it: Eleven-year-old DJ Fulano performs before a screening of 2014’s “Annie” on June 14.

City Parks Foundation

7 pm at Herbert Von King Park (Lafayette Avenue between Marcy and Tompkins avenues in Bedford-Stuyvesant, www.cityparksfoundation.org/summerstage). Free.