Cliff Richard, the most-charted British artist in the history of the U.K. singles survey, is reuniting with his original group the Shadows for their first album together in more than 30 years.

"Reunited," which consists of newly-recorded versions of their early hits as well as new tracks, is released by EMI Sept. 21 in the United Kingdom as a 50th anniversary celebration of their first success. It coincides with their sell-out, farewell arena tour together of the U.K. and Ireland, which begins Sept. 19 in Killarney, County Kerry.

The album will be preceded Sept. 14 by the release as a single of a new version of the much-covered "Singing The Blues," a transatlantic No. 1 in 1956 for Guy Mitchell, which also topped the U.K. chart that year for Tommy Steele. The CD single also includes the re-recorded "A Voice In The Wilderness," a hit for Richard with the Shadows in 1960. A seven-inch vinyl edition will also be available, as will a four-track digital EP.

Richard gave a reunion performance with the Shadows' Hank Marvin, Bruce Welch and Brian Bennett at last December's Royal Variety Performance at the London Palladium. "It was as though we'd never been apart," he says. "We laughed our way through rehearsals and the old on-stage magic seemed as fresh as ever. Now we can't wait to get on the road again for positively the very last time."

Richard, 68, has 14 U.K. No. 1 hits to his name and is the only British artist to have hit singles in six consecutive decades since his first chart appearance with the Shadows, "Move It," in 1958.

That debut hit is among the catalog to be re-recorded for the project, alongside well-known songs from Richard's first decade of popularity, such as "The Young Ones," "Living Doll," "Summer Holiday," "Travelin' Light," "The Next Time," "In The Country" and "On The Beach." The version of "Singing The Blues" is one of three songs on the 22-track album that Richard has not recorded before, alongside "C'Mon Everybody" and "Sea Cruise."

Richard and the Shadows will play 22 arena dates on the Live Nation-promoted tour, including three at London's O2 Arena (Sept. 25, 26 and 28) and two more at Wembley Arena, where the tour culminates Oct. 22 and 23, just after Richard's 69th birthday. "Box office response has been fantastic," he adds. "After three immediate capacity sales at the O2, we had to add two further dates at Wembley Arena. European ticket sales have been just as amazing, and early signs are that Australia and New Zealand will follow suit in the New Year."