Beyonce: Mrs Carter Show World Tour 2013

Singer Beyonce performs on her "Mrs. Carter Show World Tour 2013," on Saturday, Sept. 28, 2013 at the Coliceo de Puerto Rico in San Juan, Puerto Rico. (AP)

Singer Beyonce performs on her "Mrs. Carter Show World Tour 2013," on Saturday, Sept. 28, 2013 at the Coliceo de Puerto Rico in San Juan, Puerto Rico. (AP)

Singer Beyonce performs on her "Mrs. Carter Show World Tour 2013," on Saturday, Sept. 28, 2013 at the Coliceo de Puerto Rico in San Juan, Puerto Rico. (AP)

Singer Beyonce performs on her "Mrs. Carter Show World Tour 2013," on Saturday, Sept. 28, 2013 at the Coliceo de Puerto Rico in San Juan, Puerto Rico. (AP)

Singer Beyonce performs on her "Mrs. Carter Show World Tour 2013," on Saturday, Sept. 28, 2013 at the Coliceo de Puerto Rico in San Juan, Puerto Rico. (AP)

A young music fan cheers as he watches the Brazilian rock/reggae band Skank perform during the Rock in Rio music festival in Rio de Janeiro, Brazil. The festival's opening main attraction was Beyonce and Bruce Springsteen closed the week-long event that featured more than 120 bands and artists. (AP)