Brazilian Joao Gilberto, who helped create the bossa nova music genre 50 years ago, is to be the star performer at Madrid's inaugural Guitar Festival to be held in the Spanish capital May 15-June 21.

Gilberto will play and sing in solo performance at the Palacio de Congresos on May 29, while U.S. singer/songwriter Jackson Browne will kick off the 16-show event on May 15.

The festival is organised by Spanish promoter and booking agency La Bikina with the stated aim of exploring various guitar styles from Spanish flamenco, to blues, rock, bossa nova and African music.

Other artists lined up to perform at various Madrid venues include rock-blues guitarist Gary Moore, Africa's Vieux Farka Touré, Spanish rock guitarist Rosendo, Joe Henry, U.S. rock-blues exponent Joe Bonamassa, classical guitarists Manuel Barrueco and David Russell, Swedish hard rock guitarist Kee Marcelo and his band together with ex-Scorpions guitarist Uli Jon Roth, flamenco guitarist Diego del Morao, Jan Akkerman, traditional Canary Island guitarist Benito Cabrera, and Colombia's Mónica Giraldo.