Singer, songwriter, rapper, and DJ Uffie is a rarity: A 2000s music blog darling whose music had a lasting and widespread influence in the decades that followed. Anna-Catherine Hartley's girlishly anti-flow delivery, raunchy lyrics, and the sparse beats surrounding them on songs such as 2006's viral hit "Pop the Glock" evoked vintage electro and nu-skool rap and presaged the mix of pop and hip-hop that hit the mainstream in the years to come. She helped define the sound of the influential French dance label Ed Banger -- as well as the bloghouse movement -- with her singles and...