It was music to his ears.

Billionaire Tesla tycoon Elon Musk released an ethereal electronic song titled “Don’t Doubt ur Vibe” after scoring a big earnings win for his electric car company.

The 48-year-old said he wrote the lyrics and performed the vocals for the EDM track, which he released on SoundCloud early Friday. Cover art for the single shows Tesla’s futuristic Cybertruck floating in front of what looks like Mars — a possible nod to Musk’s rocket company, SpaceX.

“This song is hard,” Musk wrote to his 30.9 million Twitter followers before sharing a link to the song.

It’s unclear who produced the music itself, and whether Musk had help from Grimes, his musician girlfriend and apparent baby mama. But it’s the second release under Musk’s “Emo G Records” brand, coming 10 months after “RIP Harambe,” an AutoTuned rap tribute to the gorilla killed at a Cincinnati Zoo that became an internet meme.

Musk’s new song features spacey synths and layers some effects on Musk’s voice as he sings the straightforward lyrics: “Don’t doubt your vibe, because it’s true. Don’t doubt your vibe, because it’s you.”

Musk also tweeted photos of himself toying with equipment in a music studio, one of which shows him pointing triumphantly into the air with a big pair of rust-colored headphones over his ears.

Musk dropped his latest single two days after Tesla reported better-than-expected earnings following a 130 percent surge in the electric car maker’s stock price. The Silicon Valley-based company raked in $7.38 billion in revenue and expects to deliver more than 500,000 vehicles in 2020.

Tesla shares rose 10.3 percent Thursday but were roughly even at $641.00 in premarket trading as of 7:30 a.m. Friday.