RIFF photographers’ best work in 2020 included these shots of Poppy, Seventeen, The Struts, Colony House, Little Image, KISS, Injury Reserve, Suzi Analogue, Elbow, Tones & I, Thundercat, Thrice, Tove Lo, George Clinton and Ramblin’ Jack Elliot. In this abbreviated year of concerts, we asked our photographers to provide…

Amber Liu performs at the Warfield in San Francisco on Jan. 18, 2020. Onome Uyovbievbo/Staff. SAN FRANCISCO — Los-Angeles-born singer-songwriter Amber Liu, formerly of successful K-Pop group f(x), was all smiles at The Warfield on Saturday, the second night of her second tour as a solo artist. Liu, who…