Drake has just confirmed a long-suspected theory about one of his hit songs … as the rapper has dropped never-before-seen footage from the studio.

The hitmaker released a bunch of archival footage from the last several years … including one telling video, where he makes a big confession about his 2016 anthem, “Too Good,” featuring Rihanna.

Watch the vid … as Drake dishes to his mother — who is off camera — that he wrote the song with former flame Serena Williams in mind.

As his mom questions the intention of the song — as it’s about being “too good” for a lover — Drake defends he’s making the track both about the tennis champ … and for her.

He adds … “If I’m gonna talk about [women], I’ll at least do them the justice of making them a song that they like. So, I know Serena very well and I know that she’ll hear it loud and clear.”

Per Drake, he doesn’t think Serena will “hate” him for the single … since it’s lighthearted.

Drake’s mom appears to needle her son a bit during the conversation, reminding him that Serena has already moved on to someone else … likely referring to SW’s relationship with future husband Alexis Ohanian, who she began dating in 2015.

TMZ broke the story … longtime friends Serena and Drake were confirmed to be a couple after they were caught locking lips in a Cincinnati restaurant. They quickly became inseparable, attending everything from New York Fashion Week to restaurant openings.

However, they burned out as quickly as they heated up … as Serena found herself engaged to Alexis by the end of 2016.