Camila Cabello is set to release new music with a legend.

The 22-year-old teased a collaboration with Alejandro Sanz on social media on Monday. The song, called "Mi Persona Favorita" will be featured on Sanz's new album El Disco. It's set to release on Thursday.

"Last summer, Alejandro  called me and asked if I  could fly to Miami to do a song together for his new album," she wrote on Instagram. "It's not a secret that I've been his fan all my life and his offer left me petrified. And, without waiting another minute I took the first flight to Miami!"

Cabello continued, "Alejandro, your music has been the soundtrack to my family's life and mine. And, now I have to privilege to call you my friend and collaborator (I still can't believe it). Making this song with you has been something really special and an adventure. Thank you for thinking of me and for inviting me to work together."

The former Fifth Harmony singer revealed that she's dedicating the song to her "little sister, Sofi, who is 'My Favorite Person.'" She called the impending release of the song "a magical moment."

Sanz has been working in music for nearly three decades. His music was especially popular is the mid-'90s, during which he released hit songs like "Corazon Partido," "Amiga Mia," "Quisiera Ser," and "No Me Compare." According to ET OnlineCabello honored Sanz at the Latin Grammys Person of The Year gala. During the event, she performed "Quisiera Ser," with Juanes. In her  speech honoring Sanz, Cabello described his music as "reading your favorite book in different parts of your life and every time you feel something different, it teaches you something new." She added that his music "inspired me to love fearlessly."

Sanz's album, El Disco, is set to release on April 5.

Albums Released in 1999