In addition to Ruth Lorenzo herself, the Spanish performance will feature four backing vocalists. The four were chosen after castings in which they showcased their voices. Mey Green, Sandra Borrego, Aiwinnie Mybaby and Alana Sinkëy were eventually picked for the task.
Two of them have been on Eurovision stage before. Mey Green has been backing also Pastora Soler (2012) and El Sueño de Morfeo last year in Malmö. Sandra Borrego was on stage in 2011 with Lucía Pérez. For Aiwinnie and Alana, who happen to be sisters, this will be their first Eurovision.