THANKS, BUT NO THANKS The Rejection Show invites writers and comedians to present works that major publications deemed unfit to print. At the last show of the spring season, Margot Leitman shares work that was rejected by her own brother at Mad Magazine, the short film “Rejected!” is screened, and the Blog Party candidate for mayor of New York City (who is extremely likely to experience rejection this November) makes an appearance. Several New Yorker cartoonists who are regular attendees at the show offer up panels that didn’t make it to print – although in the past, the comics have shown off cartoons that have later been spotted in the magazine. Host Jon Friedman also promises the audience “the worst giveaway ever.” Tomorrow, 8 p.m., P.S. 122, 150 First Ave. at 9th Street, 212-477-5829, $7.

OBSESSION Sara Schaefer welcomes bespectacled singer-songwriter Lisa Loeb as the musical guest at the next installment of her faux talk show “Sara Schaefer Is Obsessed With You.” Each show also includes a segment, complete with video clips and a fawning interview, with an actor who has appeared in some capacity on one of the “Law & Order” franchises. Friday, 8 p.m., Juvie Hall Sketch Comedy Theatre, 24 Bond St., between Bowery and Lafayette Street, 212-868-4444, $8.

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