appearances. After her divorce from George Langridge became final, in 1957, Dankworth married Cleo Laine in secret at Hampstead Registry Office in 1958. The only witnesses at the wedding were Dankworth's friend, pianist Ken Moule, and arranger David Lindup. The band was earning plaudits from the critics and was invited to the 1959 Newport Jazz Festival, the first British group to receive an invite. The New York Times critic said of this appearance "Mr. Dankworth's group ... showed the underlying merit that made big bands successful many years ago – the swinging drive, the harmonic colour and the support in depth for soloists that is possible when a disciplined, imaginatively directed band has worked together for a long time. This English group has a flowing, unforced, rhythmic drive that has virtually disappeared from American bands". More succinctly, Gerard Lascelles of The Tatler, noted that 'The Dankworth orchestra blew magnificently'. The band performed at the Birdland jazz club in New York City, and shortly afterwards shared the stage with the Duke Ellington Orchestra for a number of concerts. Dankworth's band also performed at a jazz event at New York's Lewisohn stadium where Louis Armstrong joined them for a set. In 1959, Dankworth became chair of the Stars Campaign for Inter-Racial Friendship, set up to combat the fascist White Defence League. 1960s In 1961, Dankworth's recording of Galt MacDermot's "African Waltz" reached the UK Singles Chart, peaked at No. 9, and remained in the chart for 21 weeks. American altoist Cannonball Adderley sought and received Dankworth's permission to record the arrangement and had a minor hit in the US as a result. The piece was also covered by many other groups. In 1967, drummer Ronnie Stephenson's part on "African Waltz" was adapted by the Jimi Hendrix Experience's Mitch Mitchell, to form the basis of the drum part on "Manic Depression". Dankworth's friendship with trumpeter Clark Terry led to Terry's being a featured soloist on Dankworth's 1964 album The Zodiac Variations, together with Bob Brookmeyer, Zoot Sims, Phil Woods, Lucky Thompson and other guests. Other Dankworth recordings during this period featured many other respected jazz names. Some were full-time members of the Dankworth band at one time or another, like Tony Coe, Mike Gibbs, Peter King, Dudley Moore, George Tyndale, Daryl Runswick, John Taylor and Kenny Wheeler, while others such as Dave Holland, John McLaughlin, Tubby Hayes and Dick Morrissey were occasional participants.