The week in music - in pictures

Lady Gaga attends Dick Clark's New Year's Rockin' Eve in Times Square, New York Photograph: Jeff Kravitz/FilmMagic

Satchel and Michael Starr of Steel Panther perform at Irving Plaza in New York Photograph: Stephen Lovekin/Getty Images

DJ Wika Szmyt plays music at a club in Warsaw. Szmyt, 73, plays disco, rumba and samba for a mostly elderly audience Photograph: Kacper Pempel/Reuters

KT Tunstall switches off the Christmas lights at Westfield shopping centre in Shepherd's Bush to launch WWF's Earth Hour 2012 Photograph: Matt Crossick/PA

Sinead O'Connor performs at the Albert Nobbs soundtrack release party at Palihouse Holloway, West Hollywood Photograph: Jason LaVeris/FilmMagic

Lil Wayne smiles as he watches the basketball team Miami Heat play the Atlanta Hawks Photograph: Rhona Wise/EPA

Van Halen perform at Cafe Wha? in New York. Van Halen announced their 2012 tour and the release of their new album A Different Kind of Truth Photograph: Kevin Mazur/WireImage

Chris Cornell performs on the Tonight Show Photograph: Kevin Winter/NBCUniversal/Getty Images

Montserrat Caballe at the opening of an exhibition commemorating the 50th anniversary of her debut at the Gran Teatre del Liceu in Barcelona Photograph: Lluis Gene/AFP/Getty Images

Cee Lo Green speaks during a panel discussion for reality TV series The Voice in Pasadena, California Photograph: Dan Steinberg/AP

Manu Chao performs on the opening night of the Sydney Festival Photograph: Marianna Massey/Getty Images

Lou Reed leaves the funeral service for 9-year-old Lily Badger and 7-year-old twins Grace and Sarah Badger in New York. Hundreds of people attended the funeral of three young girls who died along with their grandparents during a Christmas morning fire in Stamford, Connecticut Photograph: Seth Wenig/AP

Former X Factor contestant Kerry McGregor on the show in 2006. The singer has died from bladder cancer aged 37 Photograph: Ken McKay/Rex Features

Doo wop vocal group Dion & The Belmonts. The group featured Dion DiMucci, centre, Angelo D'Aleo, Carlo Mastroangelo and Fred Milano. Milano, 72, has died of lung cancer Photograph: Frank Driggs Collection/Getty Images