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Martha Plimpton’s annual fund-raising concert at Feinstein’s/54 Below had everyone in stitches on Sunday.

Hosted by Cecily Strong, Broadway Acts for Women 3 raised more than $60,000 with an auction, in which audience members bid for the chance to choose a karaoke song for a Broadway star to sing.

Plimpton swanned through the aisles in sparkly high heels, making funny asides.

When the “Real O’Neals” star realized she’d run out of T-shirts to hurl into the crowd, she took the shirt off her back and threw it, leaving her in a bright red bra for a speech. Plimpton’s organization, A is For, seeks to advance reproductive rights.

She sang Lady Gaga’s “Born This Way” with her TV sons Noah Galvin and Matt Shively.

Her real-life dad Oscar winner Keith Carradine sang Radiohead’s “Fake Plastic Trees.” Michael Cerveris performed Journey’s “Don’t Stop Believin’,” and Brian d’Arcy James did “Endless Love” with Rebecca Luker.

VIPs included Kathleen Turner, Stockard Channing, Debra Messing, Jill Kargman, Abby Elliott and Kathy Najimy.