Voltaire Calahi Vallejo, simply known as Volts Vallejo, is a Filipino songwriter and recording artist who rose to popularity when his song "Hey Crush" was chosen as the official theme song for the Metro Manila Film Festival movie Vince & Kath & James under Star Cinema.

Volts was born in Nueva Ecija, Philippines to Rodolfo and Zenaida Vallejo on October 23, 1991.

Volts started out as a dancer and a commercial model before learning how to play the guitar and composing songs.

Volts started his musical career on YouTube, posting vlogs and song covers on his own channel.

[1] Volts big break happened when he submitted his song "Hey Crush" [2] to Star Cinema.