Pretty in pink.
Betsey Johnson Fashion Show
What: The Indelible One presents her latest pret-a-porter collection in person amid typically dramatic touches (black chandeliers, Phillipe Starck chairs); guests gorge afterward on pink cake and more-pink cocktails in honor of Breast Cancer Awareness Month.
Why: All proceeds benefit South End Community Health Center, run by Betsey’s brother Bob.
When: Sat., 7 p.m.
Where: The Cyclorama, 539 Tremont St., South End (617-426-5000). Tickets ($75-$500) online at eventfarm.com.
Bike and Bites
What: Spin your wheels with fellow foodies during a seventeen-mile trek to local purveyors like Wilson Farm and Turtle Creek Winery ($30).
Why: Pick produce with Tryst chef Paul Turano for a fall-harvest spread back at the restaurant.
When: Sun., 11 a.m.-6 p.m.
Where: Meet at Quad Cycles, 1043 Massachusetts Ave., Arlington (781-648-5222). Call 781-641-2227 to register. Equipment rental, $15.
Firebrand Saints Opens
What: Enormous Room and Central Kitchen genius Gary Strack unveils a street art-adorned hangout with floor-to-ceiling windows and a seasonally dictated menu of rotisserie bites and gourmet porchetta sammies.
Why: Wash it down simply with Notch Session Ale or decadently with a bourbon milk shake.
When: Daily, 5-11 p.m.
Where: 1 Broadway, Kendall Square (617-401-3399).
Cupcakes and Jewelry Party
What: Browse the latest mixed-media sparklers from Buffalo designer Stephanie Robb while savoring the labors of Lulu’s Sweet Shoppe.
Why: Pecan pie cake pop = heaven on a stick.
When: Today, 7-9 p.m.
Where: Shake the Tree, 67 Salem St., North End (617-742-0484).
Priscilla of Boston Warehouse Liquidation Sale
What: Fight fellow frugalistas (gently, gently) for gowns at 75-90 percent off during a one-day closeout from the soon-to-shutter bridal institution.
Why: A $4,400 strapless stunner for $99 is worth a predawn wake-up call.
When: Sat., 9 a.m.-4 p.m.
Where: 40 Cambridge St., Charlestown.
Photo: Frazer Harrison / Getty Images