MUSIC: Madonna! George Michael! No Doubt! (And Bloc Party, Too)
“Octopus,” Bloc Party

With Kele Okereke’s elector-heavy solo album behind him, the out singer is back in indie-rock mode on Bloc Party’s new single, “Octopus.” (What is it with octopi right now? What with this and that Fiona Apple video, it’s like they’re becoming for music videos what cats are for Internet memes.) An impressive return for the British band after a three-year hiatus, “Octopus” has that familiar Bloc Party urgency married to a kind of devil-may-care pop sensibility. It’s a tantalizing tease at what we can expect on the band’s upcoming fourth album, Four, due out next month.