Naomi Osaka promoted boyfriend Cordae's new album after her first win of the Australian Open

• Naomi Osaka has been dating Cordae, an American rapper, for more than two years.
• After her first-round Australian Open win, the superstar used her platform to promote his new album.

Naomi Osaka is fairly understated about her relationship with American rapper Cordae.

But after her first-round victory at the Australian Open on Sunday, the 24-year-old superstar used her immense platform to support her beau of more than two years.

As is a celebrated annual tradition at the first Grand Slam tournament of the year, Osaka and other competitors were offered the opportunity to sign the camera lens after each win. Often, players use the space to write a message to fans — as Osaka herself has done in past years.

This time around, the four-time Grand Slam champion used the space to promote Cordae's new album.

After taking down Colombia's Camila Osorio 6-3, 6-3 in her first match in Melbourne, Osaka wrote "FABEV" — an acronym for Cordae's "From a Bird's Eye View" — on the tournament's camera lens.

—NaomiOsaka大坂なおみ (@naomiosaka) January 17, 2022

The artist's 14-track sophomore album — which follows his Grammy-nominated debut album "The Lost Boy" — dropped January 14. And since Cordae "actually writes his lyrics and he has to take the time to actually experience" everything he discusses through his lyrics, Osaka is bound to come up in his discography.

But she isn't worried about getting a mention.

"It doesn't cross my mind that often because he always asks for permission," Osaka said. "But I feel like that's the most amazing part about it — he actually writes his lyrics... it's a really fascinating process."

Osaka will retake the court on Wednesday. She'll face American Madison Brengle in a second-round match beginning at 7 p.m. local time or 3 a.m. EST.