Gwen Stefani arrives on September 27th at the KISS FM studios in London, England.

Gwen Stefani arrives on September 27th at the KISS FM studios in London, England.

On Sept 26th Gwen Stefani enjoys a night out at the Garage in Highbury, Islington, London

On Sept 26th Gwen Stefani enjoys a night out at the Garage in Highbury, Islington, London

Rihanna arrives back to her hotel with a Mario Testino book in London, UK on September 26th, 2012.

Rihanna arrives back to her hotel with a Mario Testino book in London, UK on September 26th, 2012.

Super Star Nicki Minaj launches her Pink Friday fragrance at Macy’s in New York on September 23rd.

Super Star Nicki Minaj launches her Pink Friday fragrance at Macy’s in New York on September 23rd.

Katy Perry poses with a fan at the Japan premiere for her movie Part Of Me in Tokyo, Japan on September 24, 2012.

Katy Perry poses with a fan at the Japan premiere for her movie Part Of Me in Tokyo, Japan on September 24, 2012.

Pink and husband Cary Hart take their baby to the beach on September 24, 2012.

Pink and husband Cary Hart take their baby to the beach on September 24, 2012.

Gwen Stefani was given a portrait painted by a fan as she arrived at the airport with her son Zuma while in France on September 23, 2012.

Gwen Stefani was given a portrait painted by a fan as she arrived at the airport with her son Zuma while in France on September 23, 2012.

Lady Gaga arrives from presenting her perfume at Sephora in Paris, France on September 23, 2012.

Lady Gaga arrives from presenting her perfume at Sephora in Paris, France on September 23, 2012.

Singer Fergie participates in the Avon Walk for Breast Cancer Santa Barbara, which raised more than $4.7 million for breast cancer care and research, on September 23, 2012 in Carpinteria, CA.

Singer Fergie participates in the Avon Walk for Breast Cancer Santa Barbara, which raised more than $4.7 million for breast cancer care and research, on September 23, 2012 in Carpinteria, CA.

Singer-songwriter Smokey Robinson speaks at a Smoke Alarm announcement in partnership with P&G’s Children’s Safe Drinking Water program at Clinton Global Initiative, September 23, 2012 in New York.

Singer-songwriter Smokey Robinson speaks at a Smoke Alarm announcement in partnership with P&G’s Children’s Safe Drinking Water program at Clinton Global Initiative, September 23, 2012 in New York.