Forget the old song and dance.DOSerendipityWhat: Sweet Siamese team transforms a downtown warehouse into a magical forest party with the help of dancing, acrobatic, and musical creatures. Why: What are the chances? When: Fri. & Sat. Doors open at 8 p.m.; performance, 9 p.m.; after-party, midnight-2 a.m. Where: Madera Design House, Downtown. Address released at time of ticket purchase. Tickets online at treetopproductions.org.EATLemonade Bowl Box What: Salad and sandwichery celebrates its new Venice location with specialty take-out boxes packed with your choice of edible picnic essentials. Why: You can squeeze it in. When: Venice, daily, 11:30 a.m.-8:30 p.m.; Beverly, daily, 11:30 a.m.-7 p.m. Where: 1661 Abbot Kinney Blvd., at Venice Blvd., Venice (310-452-6200); 9001 Beverly Blvd., at Almont Dr., West Hollywood (310-247-2500). BUYJ Brand Gallery What: All the classics you love and newbies (Hussein Chalayan collaboration, exclusive J Brand Boutique collection) now in one place.Why: Twenty percent off during the opening party’s no reason to sing the blues.When: Opening reception, Sat., 2-4 p.m. Regular hours, daily, 10 a.m.-7 p.m.Where: Ron Herman, 8100 Melrose Ave., at Crescent Heights Blvd., Mid-City West (323-651-4129). SHAREGoodReads Book SwapWhat: Exchange old paperbacks and hardcovers for others’ preloved editions; snacks courtesy of the Kogi BBQ taco truck.Why: And so the story goes.When: Sat., 1-4 p.m.Where: Book Soup, 8818 W. Sunset Blvd., b/t Larrabee St. & Palm Ave., West Hollywood (310-659-3110).SEE The GoodTimesKidWhat: Story of stolen love and identities returns to the big screen with a party to mark its release on DVD. Why: Let ’em roll. When: Thurs. Showtime, 8 p.m.; after-party till 11 p.m.Where: Downtown Independent Theatre, 251 S. Main St., b/t W. Third & W. Second Sts., Downtown (213-617-1033).