New York - Rap superstar Drake, whose unexpected mixtape earlier this year became a top-seller, has dropped another surprise release - to an enthusiastic commercial response.
The Toronto rapper teamed up with Atlanta-based rising star Future to release a mixtape entitled What a Time To Be Alive.
The two rappers had been known to be collaborating with each other, but they released the mixtape at short notice late on Sunday on Apple Music, where Drake is a key player.
The mixtape features a cover of glittering diamonds and has multiple references to precious gems as the rappers address their recent successes.
"Man, what a time to be alive," each rapper says separately on Big Rings.
Drake starts the song by asking for a cash advance, despite his recent success.
"I got a really big team / And they need some really big rings," Drake raps, an allusion to sports teams' jewellery for winning championships.
"I do not chase girls, but they run a mile for me," Drake boasts.
Drake also uses a sports analogy to take on his critics - presumably including Meek Mills, a rapper who sparked controversy by charging that Drake did not write his own songs.
"Are we talking teams? ... This game is different, you only get one shot"
Like his previous release, Drake has described What a Time To Be Alive as a mixtape rather than as a full-fledged album of new material.
In a still unusual commercial tactic, Drake put out both mixtapes first on Apple.
What a Time To Be Alive was available on Monday for streaming on Apple Music and for download on iTunes but not on competing streaming platforms such as Spotify or on CD or vinyl.
Nonetheless, Billboard predicted that the mixtape was on course to debut on the next weekly chart at number one and to be the top-selling new release since Drake's previous work.
Previously, Billboard had forecast a number-one debut for Honeymoon, the highly anticipated fourth album by the gloomily introspective singer Lana Del Rey.
Drake's celebrity has grown with a series of headlining performance at major festivals, including Coachella in California in April.