Journalist, broadcaster and Oscar-winning documentarian Howard Smith's radio interviews with the likes of John Lennon and Yoko Ono, Andy Warhol, Mick Jagger and Frank Zappa are to be made available for the first time in 40 years.

Over 100 interviews, which only aired once, are to be released in monthly installments via iTunes and Amazon Mp3.

The Smith Tapes feature five interviews with Lennon & Yoko Ono, beginning with the couple's Bed-In for Peace, which the radio personality covered for his Village Voice column.

Smith played edited segments from his indepth chats with celebrities and cultural figures during his weekly Wplj-Fm radio broadcasts in New York and meticulously saved and filed the original uncut audio reels in the back of his West Village loft, where they sat unheard for four decades.

The unearthed interviews, which are now being made available to fans, have been restored and remastered, and are available in their entirety.

Highlights include one of Jagger's final interviews weeks before the Rolling Stones ill-fated gig at Altamont, a chat with Dennis Hopper and Peter Fonda following the release of cult movie Easy Rider at the Cannes Film Festival and an indepth conversation with Janis Joplin recorded just days before her death.