BBC Four Friday

Kate Thornton presents the pop chart programme, first broadcast on 19 February 1999. Featuring Blondie, Next of Kin, Unkle ft Ian Brown, The Moffats, Barenaked Ladies, and more

Jayne Middlemiss presents the pop chart programme, first broadcast on 26 February 1999 and featuring The Corrs, NSYNC, Lauryn Hill, Lucid, Lenny Kravitz, Whitney Houston, and mroe

Peter Powell introduces the pop programme, with performances from The Look, Spandau Ballet, XTC, Adam and the Ants, and more

Mark Franklin and Steve Anderson present the pop chart programme, first broadcast on 23 January 1992 and featuring 2 Unlimited, Shakespears Sister, Curtis Stigers, and Genesis

Noel Edmonds introduces the pop music show from April 8, 1976, featuring Abba, Hot Chocolate, Brotherhood of Man, Sheer Elegance, Paul Nicholas and Linda Lewis

David Hamilton presents an edition of the chart show from April 22, 1976, featuring Gilbert O'Sullivan, Brotherhood of Man, the Rubettes and Jimmy James and the Vagabonds

Director Frank Marshall looks at the early history of both performers, through their early partnership, writing and performing together to their hugely successful solo careers

A 1971 performance by acclaimed American singer-songwriter Carole King, featuring songs including I Feel the Earth Move, (You Make Me Feel Like) A Natural Woman, and It's Too Late

A concert from 1971 by the American singer-songwriter, featuring a guest appearance by Carole King, and with songs including Close Your Eyes, Rainy Day Man and You've Got a Friend

The singer-songwriter's triumphant May 1973 homecoming concert on the Great Lawn of New York City's Central Park before an estimated audience of 100,000

A collection of performances of hits by the singer-songwriter, both by King herself and by a range of other artists, taken from BBC shows from over the decades