There are several acts named Valentina. 1) Valentina is an Italian-British singer/songwriter residing in London, UK.
"A floating, ethereal world away from the alt-dance world inhabited by the Hot Chip musician, it's a delicate and beautiful collection of songs that range from hazy, electronica to piano-driven, pop minimalism." -- Glamour magazine 2) Valentina is a Brazilian glam rock band from Goiania, GO, formed in 2003. They mix influences from various indie bands like Placebo, Yeah Yeah Yeahs and Interpol and also some from the Brazilian pop rock scene, like Pato Fu, Ira and Titas.

Read more about Valentina on Last.fm.