Manuel Alex Andre Oliveira da Silva, or Xanddy, is a singer-songwriter recognized as a member of the band Harmonia do Samba, which enjoyed success during the 1990s. The group has released more than a dozen popular studio and live albums since their debut.
At fifteen, he wrote his first song, an autobiographical single called "Meus sentimentos." Then, in 1996, he began singing professionally.
In 2000, he made his acting debut in the comedy film Xuxa Popstar.
Several of Harmonia do Samba's songs have featured popular artists like Gilberto Gil.