[9] "Boig per Tu" is a rock ballad that features completely reworked lyrics compared to the original by Sau.
[10][11] The song was produced by Shakira and her long-time collaborator Luis Fernando Ochoa[12] and features guitar as the only instrument.
[14] Shakira performed "Boig per Tu" live on the second Barcelona date of the El Dorado World Tour.
[18][19] In an album review, Leila Cobo from Billboard commented "Loca por Ti" to be "the ultimate homage to Piqué", stating that the version in Catalan, "Boig per Tu", is a favorite song of his.
[20] Josh Haggis from Attitude described "Loca por Ti" as a sweet song with a lovely melody, despite not knowing Spanish to comment on the lyrics.
[2] The song's success in Spain was dubbed as a demonstration of Shakira's power of "building bridges of understanding between rivals" with her music.