Former Radio 1 DJ Dave Lee Travis has been charged with two further counts of indecent assault against a woman aged over 16.
Travis, real name David Patrick Griffin, has already been charged with 11 counts of indecent assault and one count of sexual assault against nine woman aged between 15 and 29.
The 68-year-old, of Leighton Buzzard, Bedfordshire, has now been charged with two further acts of indecent assault against the same woman between 1 January 1992 and 31 December 1993.
He is due to appear in Westminster Magistrates' Court on 3 October to face the new charges. He has already appeared at the Old Bailey to face the 12 previous charges, which he "categorically" denies.
Travis was originally arrested last November under Operation Yewtree, the inquiry into sex offences set up in the wake of the Jimmy Savile sex scandal.
Fourteen people have been arrested since the opening of Yewtree, which was set up by Scotland Yard to investigate alleged sexual offences by Savile and others.
Travis, PR guru Max Clifford, former BBC chauffeur David Smith and entertainer Rolf Harris are the only ones to have been charged in the investigation.
Other high-profile names to have been arrested include comedian Freddie Starr and singer Gary Glitter.
The allegations against Travis are not connected to Savile, who died in 2011.