CHRISTMAS CONCERTS

Philadelphia Orchestra

The holiday Glorious Sound of Christmas program is glorious to the extremis, with "Ave Maria, "Joy to the World," Handel's "Hallelujah" chorus, more. That's Saturday. Sunday, the fabulous Philadelphians do the full "Messiah."

Verizon Hall, Kimmel Center, Broad and Spruce streets, Christmas program 7 p.m. Saturday, "Messiah" 2 p.m. Sunday, $35-$120, 215-893-1999, philorch.org.

Trans-Siberian Orchestera

The prog-metal tour band and its lasered-up stage show blast into the Wells Fargo Center for two shows in an encore performance - the last, they swear - of "The Lost Christmas Eve." (The third installment in TSO's "Christmas Trilogy" for those keeping track).

Wells Fargo Center, 3601 S. Broad St., 3 and 8 p.m. Saturday, $30-70, 800-298-4200, comcasttix.com.

Holiday POPS!

The Philly Pops call it a Christmas wrap with the last performance of their seasonal show, this year starring vocal guests Angela Brown, the Philadelphia Boys Choir, and the African Episcopal Church of St. Thomas Gospel Choir - plus organist Peter Conte.

Verizon Hall, Kimmel Center, Broad and Spruce streets, 3 p.m. Saturday, $40-$131, 215-893-1999, kimmelcenter.org.

POP-UP SHOPS

Shop fast. It's the last big weekend of 2013's pop-up crafts mart invasion. Destinations for last-minute indie gift buying include the following:

Philadelphia Independent Craft Market, Crane Arts Building, 1400 N. American St., noon-7 p.m. Saturday, $2 suggested donation to enter.

Brand Bazaar Philly Holiday Market, Trocadero Theatre, 1003 Arch St., 2-8 p.m. Saturday, $3 entry fee.

Buy Black Marketplace, Pennsylvania Convention Center, 1324 Arch St., 10 a.m.-8 p.m. Saturday and Sunday, free admission, blackhistoryshowcase.org.

Art Star Holiday Market, Columbus Boulevard and Walnut Street, 11 a.m.-7 p.m. Saturday and Sunday.

Franklin Flea, at the old Strawbridge's, 801 Market St., 10 a.m.-5 p.m. Saturday.

Traveling Wares, this week at Tattooed Mom's, 530 South St., 1-6 p.m. Saturday.

QUIRKY BUT WORTHY

Manayunk Solstice

The Yunkers celebrate the sun's own hump day in high Druid style, with a drum circle, torch lighting and bonfire. You ask them: Why celebrate the year's shortest, darkest day? Because of the astronomical certainty that things can only get better from here.

Canal View Park, 4430 Main St., Manayunk, drum circle 4 p.m. Saturday, torch and bonfire lighting 4:45 p.m., manayunk.com.

Sarah Sze

Sze's work has appeared in some of the art world's most hallowed halls, including New York's Guggenheim Museum and London's Serpentine Gallery. Now it's taken over three floors of Philly's Fabric Workshop and Musuem, opposite the Convention Center on the old Doc Johnson's block.

Her modern installations play around with conventional notions of "landscape." If they leave you a little disoriented, that's on purpose.

1214 Arch St., 10 a.m.-6 p.m. weekdays, noon-5 p.m. weekends, through April 6, free, 215-561-8888, fabricworkshopandmuseum.org.