The week in music – in pictures

La Toya Jackson arrives at Conrad Murray's trial in Los Angeles. Murray was employed by her brother Michael Jackson at the time of his death Photograph: Gus Ruelas/Reuters

Michael Jackson fans hold signs outside Los Angeles superior court, where the trial of his personal physician Conrad Murray is taking place Photograph: Robyn Beck/AFP/Getty Images

An aerial view of the world's biggest music festival – Rock in Rio – held at the City of Rock in Rio de Janeiro, Brazil Photograph: Vanderlei Almeida/AFP/Getty Images

An energetic Shakira performs at Rock in Rio Photograph: Ricardo Moraes/Reuters

Rihanna shoots her new music video on Alan Graham's land outside Bangor, Northern Ireland. Graham had allowed the pop star to film a video in his field but took exception when he went out to fetch his tractor and found her dressed in a way he deemed 'unacceptable' Photograph: Stephen Hamilton/Presseye.com

Rihanna gestures during the second day of filming her new pop video in north Belfast Photograph: Paul Faith/PA

Afghan guitarist Hasher plays during a workshop as part of preparations for Sound Central, a one-day 'stealth festival' in Kabul that organisers hope will draw 1,000 to 2,000 young Afghans Photograph: Ahmad Masood/Reuters

Manu Chao performs at a free concert for thousands opposing anti-immigration legislation in Phoenix, Arizona Photograph: Parker Haeg / Demotix/Demotix/Corbis

Jay-Z's Shawn Carter Foundation hosts an event called Making The Ordinary Extraordinary at Pier 54 in New York Photograph: Kevin Mazur/WireImage

Duran Duran perform at The Joint inside the Hard Rock Hotel & Casino in Las Vegas, Nevada Photograph: Ethan Miller/Getty Images

Snoop Dogg plays the game RAGE at it's official launch party in Los Angeles Photograph: Jordan Strauss/Getty Images

Steve Martin accepts the entertainer of the year award for Steve Martin and the Steep Canyon Rangers at the International Bluegrass Music Association awards in Nashville, Tennessee Photograph: Mark Humphrey/AP

Taboo of the Black Eyed Peas performs at the Concert 4 NYC in New York Photograph: Kevin Mazur/Getty Images

Tina Turner in concert presenting her new album Children Beyond in Zurich, Switzerland Photograph: Action Press/Rex Features

Lady Gaga performs at the iHeartRadio festival, held at the MGM Grand Garden Arena in Las Vegas, Nevada Photograph: Christopher Polk/Getty Images

Sylvia Robinson, who has died aged 75, made an indelible mark on African-American music as a singer, producer and record company owner. She sang on hit records from the 1950s to the 1970s, and then became known as 'the mother of hip-hop' after she was among the first to recognise the potential of the nascent rap scene in the streets and clubs of New York Photograph: Michael Ochs Archives

A promotional portrait of American country bluegrass duo Wilma Lee and Stoney Cooper in the 1950s. Wilma Lee Cooper, considered the first lady of bluegrass has died, aged 90 Photograph: Frank Driggs Collection/Getty Images