@ PCI Beach Bar Wild Energy is on Friday night 6-10, Josh Magwood Band Saturday 4-8 and Jason Longoria Sunday afternoon from 3-7 Beach Goes Pops This year is the twentieth anniversary for the massive Beach Goes Pops weekend in Pass-a-grille. Loads of food from local restaurants and vendors, beverages and a live orchestra set to the back drop of a Pass-a-grille sunset. The event runs from 4-10 tonight, 5-10 Saturday at the west end of 9th ave in Pass-a-grille. Paddle Boards Demo Lenny's Surf Shop presents Ark Paddle Boards Demo Day at the Undertow Saturday. For the novice and expert alike, this event is all about having fun and becoming familiar with stand-up paddle boarding. Demo kicks off at 10am. Regata del Sol al Sol - Race to Mexico Viewable from the St. Petersburg Pier. at 9 a.m. Friday morning, its the annual sailboat competition that pits the best of the best in sailing from St. Petersburg to Isla de Mujures, Mexico. www.regatadelsolalsol.org STOMP Opening Friday and showing all weekend at Mahaffey Theater, experience this worl renown junkyard band with new routines and a crazy beat. www.mahaffeytheater.com Green Thumb Festival sat and sun Get your horticulture on and celebrate the beauty of spring at the 24th annual outdoor extravaganza! Browse horticultural exhibits, participate in a-Grow-and-Share program, learn recycling tips, and much more! Get your soil and water tested, take home free mulch or get your gardening tools sharpened! Celebrate Arbor Day and Earth day at the same time. Walter Fuller Park, 9 a.m. to 4 p.m. www.stpete.org/greenthumb.asp The Amazing Mystery Urban Green Building Tour Take an amazing bus tour of three green buildings Saturday, right here in St. Pete and led by Darren Brinkley, founder of REAL Building. Tickets $15, not recommended for children. RSVP, purchase tickets: www.pieraquarium.org/events/event_details.asp?id=99544 Museum of History Antiques Show sat and sun Visit more than 30 dealers in antiquities, fine art, furniture, pottery, silver and glass throughout the museum. Bring in your treasures from home and get them appraised from 11 a.m. to 3 p.m. by Kennedy Brothers Antique Appraisals & Auctions. At the St. Petersburg Museum of History Saturday and Sunday from 10 a.m. to 5 p.m.www.spmoh.org