From left, Rochelle Humes, Vanessa White, Una Healy and Mollie King from British band The Saturdays performs at the V Festival in Chelmsford, England, Sunday, Aug. 18, 2013. (AP)
U.S. singer Beyonce Knowles performs at the V Festival in Chelmsford, Essex, Britain, Saturday, Aug. 17, 2013. (AP)
British singer Paloma Faith performs at the V Festival in Chelmsford, Essex, Saturday, Aug. 17, 2013. (AP)
Danny O'Donoghue from Irish band The Script performs at the V Festival in Chelmsford, England, Saturday, Aug. 17, 2013. (AP)
Alex Trimble from British band Two Door Cinema Club performs at the V Festival in Chelmsford, Essex, Saturday, Aug. 17, 2013. (AP)
British singer Conor Maynard performs at the V Festival in Chelmsford, England, Saturday, Aug. 17, 2013. (AP)
Emeli Sande performs on day 2 of the V Festival at Hylands Park on August 18, 2013 in Chelmsford, England. (Getty Images)
Mollie King of The Saturdays performs on day 2 of the V Festival at Hylands Park on August 18, 2013 in Chelmsford, England. (Getty Images)
Mollie King of The Saturdays performs on day 2 of the V Festival at Hylands Park on August 18, 2013 in Chelmsford, England. (Getty Images)
Rochelle Humes of The Saturdays performs on day 2 of the V Festival at Hylands Park on August 18, 2013 in Chelmsford, England. (Getty Images)
Una Healy of The Saturdays performs on day 2 of the V Festival at Hylands Park on August 18, 2013 in Chelmsford, England. (Getty Images)
Vanessa White of The Saturdays performs on day 2 of the V Festival at Hylands Park on August 18, 2013 in Chelmsford, England. (Getty Images)
Diana Vickers performs on day 2 of the V Festival at Hylands Park on August 18, 2013 in Chelmsford, England. (Getty Images)