Author Chris Heuertz: The advocate for the poor and author of the recent book Unexpected Gifts will speak about how Christians can help people in extreme need everywhere. He will also speak in the Sunday worship services. Reservations are required. 9:30-11 a.m. $3 children, $5 adults. Crossroads Christian Church, 1645 Seminole Blvd., Largo. (727) 584-8601.
St. Hagop Armenian Church Winter Bazaar: Features more than 40 arts and crafts vendors, music, food and children's activities. 10 a.m.-5 p.m. Free. St. Hagop Armenian Church, 7010 90th Ave., Pinellas Park. (727) 545-0380.
Wine Weekend St. Pete 2013: Weekend for wine lovers with food, vintners and auctions, to benefit the Margaret Acheson Stuart Society of the Museum of Fine Arts and its programs. Ticket: $100. 11 a.m.-2 p.m. Renaissance Vinoy Resort & Golf Club, 501 Fifth Ave. NE, St. Petersburg. (727) 753-9463. wineweek endstpete.org.
Art For Faith's Sake Concert: This pipe organ concert features young German organ virtuoso Felix Hell on the 51-rank Austin pipe organ. 1 p.m. Free. Prince of Peace Lutheran Church, 455 Missouri Ave., Largo. (727) 585-9969.
Rave On! The Buddy Holly Tribute Concert: Billy McGuigan presents his portrayal of the legendary Buddy Holly playing hits including Peggy Sue, Raining in My Heart, It's So Easy, That'll Be the Day and True Love Ways. 2 p.m. $29.50 advance, $34.50 at the door. Largo Cultural Center, 105 Central Park Drive. (727) 587-6793. largoarts.com.
Sunsation Show Chorus: The singing group presents "Destination," an exploration of the cities and neighborhoods where the music of a generation was born with songs such as: Blue Suede Shoes, California Girls and Kansas City. 3 p.m. $15. Pinellas Park Performing Arts Center, 4951 78th Ave. N. (727) 541-4501.
Sunday Matinee Music Program Series: Enjoy a full course meal while listening to harmonies by the Florida Suncoast Barbershop Harmony Society. 3:30-5 p.m. $13. Largo Community Center, 400 Alt. Keene Road. (727) 518-3131.
My Black is Beautiful Pageant: In celebration of Black History Month, this pageant shows youth ages 7 to 18 the activities and opportunities available to them at the theater and gives them the opportunity to showcase their talent. 4 p.m. $20. St. Petersburg City Theatre, 4025 31st St. S. (727) 768-1654. splt.org.
American Battle Championships: The fighter-owned mixed martial arts organization brings more than 20 bouts with rotating monthly celebrity appearances. 7 p.m. $20-$50. Gasoline Alley, 14046 66th St. N, Largo. (863) 440-2821. fightabc.com.
Vintage Vegas Concert: Straight from Las Vegas, Carme and his band salute some of the greats through playful impressions, storytelling and songs. 2 p.m. $22.50. Largo Cultural Center, 105 Central Park Drive. (727) 587-6793. largoarts.com.
Pickleball: This activity combines several rules of tennis, badminton and pingpong. It is played on a badminton-sized court with a Wiffle Ball and players use wooden paddles similar to the ones used in pingpong. 8:45-11:45 a.m. $2-$3. Forbes Recreation Center, 6401 94th Ave. N, Pinellas Park. (727) 541-0882.
Healthy Heart Resource Fair: Cypress Palms will host a community health seminar on heart disease. Keynote speaker Dr. Ronald Walsh, a cardiologist, will discuss the latest advances, new therapies, equipment and health vendors. 10 a.m.-2 p.m. Free. Cypress Palms, 400 Lake Ave. NE, Largo. (727) 385-9881.
Seminole Toastmasters Open House: Meet members and hear speaker Jill Haseltine talk about the importance of communication skills for today's professional. 6:15-7:15 p.m. Free. Seminole Community Library, 9200 113th St. N. (727) 394-6905.