MADRID, SPAIN - MARCH 08: (L-R) King Felipe VI of Spain and Queen Letizia of Spain attend the 'In Memoriam' concert at the Auditorio Nacional de Musica on March 8, 2017 in Madrid, Spain. (Photo by Fotonoticias/WireImage)
MADRID, SPAIN - MARCH 08: King Felipe VI of Spain and Queen Letizia of Spain attend tribute concert 'In Memoriam' for terrorism victims at the Auditorio Nacional de Musica on March 8, 2017 in Madrid, Spain. (Photo by Carlos Alvarez/Getty Images)
MADRID, SPAIN - MARCH 08: King Felipe VI of Spain and Queen Letizia of Spain, vice president of the Government, Soraya Sáenz de Santamaría attend a Concert Tribute to the Victims of Terrorism in the National Auditorium on March 8, 2017 in Madrid, Spain. (Photo by JuanJo Martín - Pool/Getty Images)
MADRID, SPAIN - MARCH 08: Queen Letizia of Spain attends the 'In Memoriam' concert at the Auditorio Nacional de Musica on March 8, 2017 in Madrid, Spain. (Photo by Fotonoticias/WireImage)
MADRID, SPAIN - MARCH 08: Queen Letizia of Spain attends tribute concert 'In Memoriam' for terrorism victims at the Auditorio Nacional de Musica on March 8, 2017 in Madrid, Spain. (Photo by Carlos Alvarez/Getty Images)
