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Rihanna I'm Back, Believe It!!! Feat. on PartyNextDoor Single

Rihanna fans rejoice, she's finally giving you what you've wanted for years -- new music ... in the form of a collab with PartyNextDoor.

RiRi's featured on his new single, "Believe It," which appears on the Canadian R&B singer's new album, "Partymobile." It dropped at midnight via Drake's label, OVO Sound ... and has everyone wondering when Rihanna's own record will be released.

For now, we got 'Believe' ... a groovy slow jam, highlighting Rihanna and PND's smooth vocals paired to create a nice hook.

The duo had previously linked up on her single, "Work ft. Drake" ... PND was one of the co-writers.

Rihanna hasn't put out an album since she released "Anti" in 2016 -- but last month she revealed was back in the studio working with The Neptunes -- Pharrell Williams and Chad Hugo.

Patience. For now, fans can believe she's still got it.

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