JLo watches the Carnival parade in Rio

Actress and singer Jennifer Lopez watches the Portela samba school parade on the first night of the annual Carnival parade in Rio de Janeiro's Sambadrome. (REUTERS)

Lopez watches the Carnival parade in Rio. (AP)

Jennifer Lopez and Casper Smart (AP)

Jennifer, Casper and Benny attend the festivities. (AP)

US singer Jennifer Lopez and Casper Smart attends the first day of parades of Carnival of Rio de Janeiro, Brazil.