Some days, it feels like there is no pop star besides Post Malone. His music is astronomically popular and ubiquitous, and sounds like it could belong everywhere: a hip-hop club, a honky-tonk, a rock concert, a poolside bar.

His new album, “Hollywood’s Bleeding,” debuted at No. 1 with the biggest streaming total of the year, and all of its songs hit the Billboard Hot 100, a sign of how well-suited Post Malone is to the streaming ecosystem. His songs sound like everything and nothing, and they barely come to a stop before bleeding into the next one.

On this week’s Popcast, a conversation about how Post Malone catapulted to the top of the charts, and the questions — about genre, race and other things — that such a quick ascent tends to gloss over.

On the Popcast: