Son Kuma Turns Physics Into a Study of Love and Purpose on 'Keep That Energy'

Inglewood artist, producer, and songwriter Son Kuma turns physics into something deeply human on Keep That Energy, an ambitious Hip-Hop and R&B album built around one central question: where is our energy actually worth spending?

Kuma brings an unusual perspective to that question. Alongside his career in music, he earned a degree in Mathematical Physics from Stanford University, teaches high-school-level physics, and gives biannual lectures on songwriting and composition at Stanford's music department. On Keep That Energy, those worlds collide through music, physics, manga-inspired visuals, and a larger story about self-discovery.

The album's sequencing is especially clever. Titles including “By Force,” “Long Distance,” “Are We Working Enough?,” “Overtime,” “Power,” “mc²,” “Heavyweight,” and “Potential” are arranged around actual physics equations. Force multiplied by distance becomes work, work divided by time becomes power, and weight multiplied by height becomes potential energy.

But the concept never feels like an intellectual gimmick. The equations provide structure for something far more personal.

Across the record, Kuma examines heartbreak, ambition, capitalism, overwork, romantic connection, and the uncomfortable realization that relentless productivity doesn't necessarily produce a meaningful life. “Are We Working Enough? Pt. II” turns the question back on itself, while “Overtime” finds Kuma confronting the trap of believing enough work and money will eventually purchase freedom. “Power” begins breaking that cycle as love becomes a force capable of competing with greed and endless ambition.

That journey eventually reaches “It Matters,” where self-love, love for others, and genuine connection replace material success as the album's measure of fulfillment. Even the project's manga-inspired artwork extends the narrative, gradually revealing two versions of Kuma before showing that the figure he's been pursuing is ultimately his own reflection. The final imagery reunites those identities, representing the acceptance required to become his most powerful self.

Keep That Energy is dense, but intentionally so. Son Kuma isn't simply using physics references to make a clever concept album. He's applying the language of energy, force, work, and potential to questions most people eventually face: What deserves our time? What drains us? And what are we working so hard to reach?

His answer is surprisingly simple. Energy is finite. Love, purpose, and the people who make life meaningful might be where it's best spent.

Physics isn't simply referenced on Keep That Energy; it determines the album's structure. When did you realize scientific equations could become a framework for telling such a personal story?

The idea for this album structure came about quite randomly, but the more I fleshed it out, the more sense it made. For me, song titles usually come after song lyrics. When I get to the mic, I just freestyle whatever comes to mind. Afterward, I listen back, type out the lyrics, and choose a song title based on the lyric that feels most representative of the song.  

The first song I made for this project was "Are We Working Enough? Pt. I." In reality the song only references physics once, when I say, "I can use my degree to get me a spot at Raytheon / it's no problem ethics and morals get left a door / just pay me dawg..." -- I once considered working for Raytheon, a DOD contractor that frequently hires physics majors, but my opposition to the wars the US is involved in ultimately led me down a different path: becoming a physics teacher. 

At its core, the song is about work; what we do, why we do it, and what it costs us. But for me, physical quantities have always felt somewhat analogous to their literal forms and everyday meanings. In physics, work is the energy transferred to or from a system when a force is applied along a distance. In life, work can ultimately be the system draining all of us of our energy. 

That connection pushed me to imagine what the tracklist for an "Energy/Physics" inspired album would look like. I started jotting down potential song titles that incorporated physical quantities: "Inertia," "By Force", "Long Distance", "Are We "Overtime", "Power", etc... As I composed and sequenced the songs, a larger theme of work obstructing freedom and life started to emerge. What began as a clever structural idea gradually became the framework for telling my story.

A major tension throughout the album is the belief that working harder will eventually create freedom, followed by the realization that work itself can become the thing keeping you from living. How has your own relationship with ambition changed while making this record?

I'm still tryna figure this one out. Work never really stops; the only control we have is choosing where our energy goes. During the day, I use my energy as a teacher to inspire the young people to reach the best versions of themselves. During the night, I give my energy to my creative outlets. While I still don't quite feel free, I feel at peace with how I use my energy. My ambition hasn't disappeared, it's become more intentional.

The visual storyline eventually reveals that the alternate version of yourself you've been pursuing is actually your own reflection. What did that realization represent about the person you were becoming outside of the music?

It represented a journey toward self-acceptance. If I couldn't see my true self, how could anyone else? I carry several identities and titles, some of which don't seem too interrelated on the outside. The only common factor across them is me. Rather than continuing to move as if who I am inside the music and who I am outside of it were seerate, I wanted to reconnect them. All of us bridge multiple passions and carry different life experiences.  Thos different parts of ourselves aren't contradictions, they work together and shape our thoughts and beliefs of the world. 

You move between being an artist, producer, physics teacher, and Stanford graduate. Have you ever felt pressure to choose one identity, and does Keep That Energy represent you rejecting that idea?

For sure. Maintaining my multiple identities and incorporating all of them into my art  does feel a bit rebellious. What I find most interesting is the only people that still pressure me to choose a single identity are people that knew me before I fully understood myself and before they could see the real me. We are constantly reformulating and reconfiguring who we are. Some people met me early on in the journey and still view me as the version of myself they first encountered. They may not recognize who I am now or where I'm headed. I think this experience applies to a lot of us. New people tend to accept me as everything I currently am without questioning how those identities coexist. In academic spaces my art is generally viewed positively. In artistic spaces, the fact I studied physics tends to be a conversation starter. Keep That Energy is absolutely a rejection that I need to keep those worlds separate. 

By the end of the album, love becomes your answer to the question of where our limited energy should go. What happened in your life that made you believe love, rather than success or achievement, was the most meaningful use of that energy?

At my lowest points there was no amount of success or achievement that could lift me up. But love just always had this magical power to pull me out of anything. Love is one of those words that resists a clear-cut definition, but for me, the verb form of it is to project energy with compassion and selflessness. From that perspective love languages are the frequencies through which different people prefer to receive that energy. When you give your energy through love in a form someone can truly receive, you deepen your bonds with people that can return that energy  in the ways you need. Success can validate you temporarily, but love sustains you.