Getty Images

Giorgio Moroder Featuring Kylie Minogue
“Right Here, Right Now”
RCA
At 74, Moroder is still crafting opulent dance productions. His collaboration with Minogue lacks the heart-stopping hooks of his greatest disco achievements, but still sparks movement with robotic synths that sound inspired by his recent work with Daft Punk. –Jason Lipshutz

Kylie Minogue Primer: The Top 10 Past Hits You Need To Know

Rihanna, Kanye West and Paul McCartney
“FourFiveSeconds”
Roc Nation
Rihanna embraces a new sound on a stripped-down folk-pop track where she pairs with West and Sir Paul. The acoustic delivery amplifies her voice’s vulnerability while West remains unapologetic, singing, “They want to buy my pride/But that just ain’t up for sale.” –Erika Ramirez

“FourFiveSeconds” Rihanna and Kanye West and Paul McCartney from PulsateMedia on Vimeo.

Rihanna, Kanye West & Paul McCartney Debut on Hot 100 With ‘FourFiveSeconds’

Zac Brown Band
“Homegrown”
Big Machine/Republic
The message of “Homegrown” is plain enough: Who needs to be bothered by life’s ­complexities when one has good friends, a “good-looking woman” and a bottle of whiskey? It’s an ode to simple living, but it relies on ­intricately arranged vocal harmonies, ­splendid guitar/banjo interplay and a lovely key change in the final minute. –Jason Lipshutz

Zac Brown Band Continues ‘Sweet’ Success Atop Country Airplay Chart

Purity Ring
“Begin Again”
4AD
On Canadian dream-trap duo Purity Ring’s new “Begin Again,” the sweet intonations of vocalist Megan James float over rattling kick thuds so deep they could shatter permafrost. James and producer Corin Roddick have never sounded more in sync, turning away from the amorphous sparkles of the pair’s debut album for more streamlined songwriting. –Harley Brown

This story first appeared in the Feb. 7 issue of Billboard.