In 1999 they presented a benefit concert at The Hackney Empire, directed by Keith Johnstone and Improbable theatre's Phelim McDermott.
Joining the Spontaneity Shop cast were Tony Slattery, Jonathan Pryce, Lee Simpson, Neil Mullarkey and a number of other special guests.
In 2000 the company created DreamDate, the improvised romantic comedy which was a hit at the Edinburgh Fringe.
Hat Trick Productions, producer Dan Patterson and most recently Pozzitive Television have all attempted to get TV versions made but none has yet got past the pilot stage.
The company also developed the long form structure Tell Tales which presents a complete improvised play entirely in monologues.