Aishwarya Rai Bachchan in Black Leather Pants at Sound of Change Concert in Twickenham

Bollywood diva Aishwarya Rai Bachchan continues to light up the red carpet on this tour of European fashion capitals. The 39-year-old Indian actress, a former Miss World, was her usual glamorous self at Saturday's Sound of Change concert in Twickenham.

Aishwarya Rai Bachchan was in Cannes last month, for the 2013 Cannes Film Festival, where she walked the red carpet in a black lace-print Elie Saab Spring 2013 Couture gown, among others. A regular at Cannes, she was also seen at amfAR's Cinema Against Aids gala, where she wore a heavily-embroidered golden sari.

The actress' appearance at the Sound for Change concert in London was a radically different look though, with the mother-of-one sporting an all-black rocker chick look. The Indian fashion diva wore a tailored blazer on top of a metallic blouse and skinny leather pants... all black, of course. The ensemble was finished with Gucci patent leather boots and a chunky bracelet.

The concert, which featured Beyoncé Knowles, Madonna, Florence + The Machine and Jennifer Lopez, among others, was part of a global fund raising campaign called Chime for Change.

Chime for Change is a global campaign, founded by Italian fashion house Gucci and headlined by Knowles, Hollywood diva Salma Hayek-Pinault and Frida Giannini, Gucci's Creative Director. According to the organisation's website, Chime for Change is a "global campaign to raise funds and awareness for girls' and women's empowerment".

Aishwarya Rai Bachchan was also seen shopping in London, with a Louis Vuitton handbag, her husband Abhishek Bachchan and their daughter, Aaradhya Bachchan, for company.

Check out two photographs of Aishwarya Rai Bachchan and Abhishek Bachchan at the Sound of Change concert