By Greg Gilman LOS ANGELES (TheWrap.com) - Spike Lee, Usher and Cheech and Chong have been added to the long line-up of celebrities honoring the eight 2013 Rock and Roll Hall of Fame inductees at the annual ceremony held in Los Angeles this spring. Oscar-nominated director Lee will partner with Harry Belafonte to pay tribute to hip hop group Public Enemy, while comedians Cheech and Chong ("Up in Smoke," "Still Smokin") will present Lou Adler - who produced the duo's movies - with the Ahmet Ertegun Award for Lifetime Achievement. ...