Rihanna has released another infectious tune called "Diamonds" ... and we love it!

The 24-year-old songstress Tweeted: “Palms rise to the Universe! #Diamonds WORLD PREMIERE ..."

Rihanna's mature-sounding single, produced by Stargate with Benny Blanco and written by Aussie songwriter Sia, is sure to be a hit!

Rock on, RiRi!