It’s LL Cool J’s birthday. Make the weekend bigger and deffer.

BUY
Robin Richman Group Show
What: Shop boundary-pushing designers and artists from NYC and Chicago (Black Sheep and Prodigal Sons, Gillion Carrara, Urban Zen, Jacki Holland, Catherine Jacobi).
Why: Bites from Lula Cafe. Bonus.
When: Fri., 5-8 p.m.
Where: 2108 N. Damen Ave., b/t Charleston St. & Dickens Ave. (773-278-6150).

DO
The 2nd Annual Winter Block Party for Chicago’s Hip-Hop Arts
What: Pop (and lock) in for free film, dance battles, spoken word artists, and more.
Why: Award-winning doc P-Star Rising, chronicling the rise of a 9-year-old girl rapper.
When: Sun. Doors open & P-Star Rising screens at 11 a.m.
Where: Victory Gardens Biograph Theater, 2433 N. Lincoln Ave., at Fullerton Ave. Call 312-948-4600 for info.

LAUGH
Robert Buscemi
What: The daffy absurdist comic opens for Zanies’s headlining acts, but he’s the real highlight.
Why: Stand-up’s on the rise.
When: Thru Sun. Schedule online at chicago.zanies.com.
Where: 1548 N. Wells St., at North Ave. (312-337-4027).

SUPPORT
CHIRP Radio Launch Party
What: Celebrate the kickoff of Chicago Independent Radio Project’s new online radio station with live sets by The Yolks, Hollows, and Rabble Rabble.
Why: You’ll tweet about it.
When: Sat., 10 p.m.
Where: Empty Bottle, 1035 N. Western Ave., at Cortez St. (773-276-3600). Tickets available online at ticketweb.com.

SHOP
Tula Warehouse Sale
What: Save up to 85 percent on designer apparel and accessories at Southport’s style hub.
Why: Jo Gordon wool berets, Organic plaid scarves, and Demylee cardigans, to name a few.
When: Thurs. & Fri., 11 a.m.-7 p.m.; Sat., 11 a.m.-6 p.m.; Sun., noon-5 p.m.
Where: 3738 N. Southport Ave., b/t Grace St. & Waveland Ave. (773-549-2876).

Photo: Courtesy of Robin Richman