Len Blavatnik’s Warner Music Group and its Atlantic Records label are making a multimillion-dollar investment to boost operations at Mike Caren’s Artist Partners.

Artist Partners houses rap star Kevin Gates, whose “Islah” is No. 2 on Billboard’s Top Albums chart, and Charlie Puth, whose “Nine Track Mind” sits at No. 5.

The company aims to help artists to expand their business, and to sign other artists while helping them stay focused on their music.

Gates, for instance, has his own energy drink, “I Don’t Get Tired.” Arist and repertory man Caren, with Atlantic since he was 17 years old, will also become creative officer across Warner Music.

Caren, known for helping forge the careers of Jason Derulo and David Guetta, among others, told The Post this is the golden age of music.

“The new generation has access to so much more information and they’re consuming every genre and the lines are blurred,” Caren said.

“It’s time for people who complain to do something else.”