You’ll be seeing stars in the Ridge this weekend!

The stars are out in Bay Ridge this weekend!

Start your weekend off with music from jazz songbird Isabel Reardon, who will perform a free, two-hour set on Friday night at the Brooklyn Firefly (7003 Third Ave. at Ovington Avenue) beginning at 8 pm. The singer and pianist will perform tunes by stars of the scene, including Billie Holiday, Amy Winehouse, and others.

On Saturday, slide into the BookMark Shoppe (8415 Third Ave. between 84th and 85th streets), at 2 pm, when former Mets first basemen Keith Hernandez will discuss his baseball career, sign his new memoir “I’m Keith Hernandez,” and talk about his unforgettable role in the “Seinfeld” episode “The Boyfriend.”” Purchase of the $30 book is required for entry.

Once you’ve recovered from being star-struck, cruise down to the Wicked Monk (9510 Third Ave. between 95th and 96th streets) to take in pop hits from cover band Cause and the Effects. The group takes the stage at 11 pm, and the cover fee will set you back $15.

On Sunday, bring family to the Lutheran Church of the Good Shepherd (7420 Fourth Ave. at Bay Ridge Parkway) where the Children’s Chorus of Bay Ridge will perform its Spring Concert. All proceeds from the suggested $10-per-family ticket price go to an organization that supports Haitian children, the Children in Need Haitian Project. Kids can enjoy face painting and refreshments after the show, which starts at 3 pm.

Sunday night, head to John Paul Jones Park (101st Street and Fourth Avenue) to take in a free movie starring Sylvester Stallon as everyone’s favorite boxer, “Rocky,” which starts at 8:30 pm. Bring a blanket and snacks to enjoy two hours of pugilistic action under the stars.

Reach reporter Julianne McShane at (718) 260–2523 or by e-mail at jmcshane@cnglocal.com. Follow her on Twitter @juliannemcshane.