Ball played Alex in "Aspects of Love", both in London and New York, and Giorgio in the London production of Stephen Sondheim's "Passion". "Alone Together" was his one-man show first performed at the Donmar Warehouse (which was reprised in 2004 for the "Singular Sensations" season at the Haymarket). In 1998 Ball performed at three big concerts: "The Fiftieth Birthday Concert of Andrew Lloyd Webber" at the Royal Albert Hall (released on DVD), "Sondheim Tonight" at the Barbican Centre (released on CD) and "Hey, Mr. Producer: The Musical World of Cameron Mackintosh" (released on CD and DVD). In 2002 he took on the role of Caractacus Potts in the Sherman Brothers musical "Chitty Chitty Bang Bang", which was largely considered his comeback role.