Madonna inducted into " Rock and Roll Hall of Fame"

Pop star Madonna, folk singer Leonard Cohen, rocker John Mellencamp, British pop band The Dave Clark Five and instrumental group The Ventures were inducted into the Rock and Roll Hall of Fame today.    

The five artists were chosen by 600 music industry professionals, and beat out disco queen Donna Summer, funk group Chic, rap pioneer Afrika Bambaataa and hip-hop group The Beastie Boys for the 23rd annual induction.