léa cristina lexa araújo, better known by the stage name lexa, is a singer, composer and brazilian dancer. her first single, the "posso ser" song, was released in december 2014 and became one of the most played tracks on brazilian radio in 2015. this song is part of the ep of the same title released by lexa in march 2015 and disclosed as a preview of her first studio album. in september 2015, the singer released her debut album, titled disponível.