A Minnesota fourth-grader's moving performance at his school talent show has gone viral. 

Playboy founder Hugh M. Hefner, the pipe-smoking hedonist who revved up the sexual revolution in the 1950s and built a multimedia empire of clubs, mansions, movies and television, symbolized by bow-tied women in bunny costumes, has died at age 91. 

Sir George Martin, the longtime producer and arranger for The Beatles, has died at the age of 90.

Music icon David Bowie, whose illustrious career lasted five decades with hits like "Fame," ''Heroes" and "Let's Dance," died Sunday at the age of 69, his U.S. agent, Steve Martin, confirmed to CBS News in London.

The death of John Lennon still reverberates as a defining moment for a generation and for the music world.