Short for Ignorantly Delivering Knowledge, IDK is as much a moniker as it is a mission. The Prince George’s County, Maryland, artist Jason (IDK) Mills has long dedicated his life and art to presenting big ideas in accessible ways. Using witty lyricism, percussive flows, and a chameleonic musicality, IDK turns life lessons and philosophical musings into utter bangers. In the process, he’s become one of rap’s most inventive practitioners. His new album, USEE4YOURSELF, is his richest work yet, a sprawling meditation on love, materialism, masculinity, and the effects of a troubled upbringing. Loaded with unpredictable features and recollections from childhood, it’s a character study framed in fierce beats and blockbuster productions. It’s also a culmination for the man born Jason Mills, who began his musical journey behind bars about a decade ago. Through albums like Subtrap (2015), IWASVERYBAD (2017), and Is He Real? (2019) IDK built a proper body of work. And he using that foundation as a jump-off point for not just music, but action that enriches the world: his inquisitive Radio Clue Apple Music radio show; No Label Academy, his music biz course in collaboration with Nike and Harvard University; and his Clue Records, which in 2020 released IDK & FRIENDS 2, a soundtrack for Kevin Durant’s Basketball County: In the Water documentary full of DMV-area artists. As IDK puts it, with that trademark mix of flex and humor: “I’m in competition with myself and only me. And I’m whooping my ass every time.”