Mario Vaquerizo Caro (Madrid, 5 July 1974) is a Spanish singer-songwriter, journalist, writer, manager and occasional radio and television personality.

Vaquerizo has worked as a media contributor to Spanish newspapers El País and La Razón, magazines such as Vanidad, Primera Línea, Rolling Stone, In Touch, and Canal+, a French premium cable channel.

He also worked as press agent for Spanish musical groups Fangoria, Dover, singers Merche and Silvia Superstar, and actresses Elsa Pataki and Leonor Watling.

They have released five albums with Warner Music Group, their most famous songs being "Peluquitas", "Me da igual", "Sálvame", "Corazón de hielo" and "Di que sí".

In 2014, Vaquerizo published a book titled Fabiografía; written in the first person, it is the biography of Fabio McNamara, an important artist and figure in La Movida Madrileña counterculture scene.