Canadian singer Joni Mitchell, one of the symbols of the Woodstock generation, was in intensive care in a Los Angeles hospital, according to her website.
Elvis Presley, the late "king" of rock-and-roll and former fixture in Las Vegas, will receive a symbolic return to Sin City with a reconstruction of his concerts.
Taylor Swift was crowned the world's top-selling artist in 2014, although an industry group said that the Disney soundtrack "Frozen" would have beaten her.
Pussy Riot, the Russian band jailed after mocking the Kremlin, has released a first English-language song that takes aim not at Vladimir Putin but at US police brutality.
The tour manager of rapper Nicki Minaj was stabbed to death and another member of her entourage was seriously injured in a bar fight, the artist and police said.
Russian MPs spoke out and fans launched a Twitter campaign after the European Union slapped sanctions on a popular singer often compared to Frank Sinatra.
Taylor Swift scoffed at a hacker who took over her social media accounts and threatened to release nude pictures, with the pop star saying none existed.
Opera singer Maria Mudryak from Kazakhstan will give solo concerts in Almaty and Astana in May. The events are dedicated to the 70th anniversary of the Victory Day.
Rock star Neil Young announced his high-resolution music player Pono to the general public after delivering some 20,000 devices to Kickstarter supporters.