Comerte la cara literally translates to "to eat your face," which sounds pretty intense! It's actually a passionate and colloquial Spanish expression that means 'to cover your face with kisses' or 'to kiss you all over'.
In "PROMESA", ROSALÍA lists this among a series of intimate moments she wants to share with her lover. It's a perfect example of how Spanish can use vivid, physical imagery to express deep affection and desire.
This song is exactly what its title says: a promise. ROSALÍA and Rauw Alejandro sing about a deep commitment to each other, a love that follows the heart over the head. They make it clear with the line, "Pesa más el corazón que la razón" (The heart weighs more than reason). This isn't just a simple promise; it's a promise to build a whole life together, to never look back, and to find each other again even if they get lost. It's the kind of connection where they believe, "Si te perdiera / Sé que te volvería a encontrar" (If I lost you / I know I would find you again).
The best part is the list of all the things they want to do together. It's a mix of sweet, simple moments and grand adventures. They want to "comer cerezas contigo" (eat cherries with you), "subir todas las montañas" (climb all the mountains), and even "Pasear por la playa con caballos" (Walk on the beach with horses). The song builds this beautiful world where the most important thing is sharing every single experience, no matter how big or small, with the person you love.