The show will also feature singers Graham Bickley and Mary Carewe, narrator/director Simon Green, a backing troupe of 16 singers from the Arts Educational Schools of London, and the Royal Philharmonic Orchestra, Cadogan Hall's resident orchestra.
Devised by David Firman, the concert will feature Sondheim hits like "Broadway Baby," "In Buddy's Eyes," "Losing My Mind," "Old Friends," "Barcelona," "Another Hundred People," and "Being Alive."
Friedman has won Oliviers for By Special Arrangement, Ragtime, and Passion. She most recently appeared in Andrew Lloyd Webber's The Woman in White in London and on Broadway. Evans' two Oliviers are for Sondheim's Merrily We Roll Along at the Donmar Warehouse and the Menier Chocolate Factory revival of Sondheim's Sunday in the Park with George, which transfers to Broadway's Studio 54 in January, via the Roundabout Theatre Company.
For more information, visit www.whatsonstage.com.