DJ Neil Fox has "categorically" denied he is guilty of nine sex offences against six female complainants - including three who were allegedly juveniles at the time.
The Magic presenter, known as Dr Fox, was charged today and will appear on bail at Westminster Magistrates' Court on April 16.
It comes after the 53-year-old, from Fulham in west London, was first arrested in September last year, then again in December and earlier this month.
His lawyer Anthony Burton said in a statement: "It is wholly inappropriate at this stage for Mr Fox to make any comment, save that he categorically denies each and every allegation that has been made against him."
The offences related to the three juveniles are alleged to have taken place between 1991 and 1996.
The other three complainants were allegedly attacked by Fox between 2003 and 2014.
Fox is charged with one count of indecent assault on a female aged under 14 and two counts of indecent assault on females aged under 16 contrary to the Sexual Offences Act 1956, in relation to the three juveniles.
In relation to the more recent allegations, he is charged with four counts of indecent assault on a female over 16 contrary to the Sexual Offences Act 1956 and two counts of sexual assault on females contrary to Section 3 of the Sexual Offences Act 2003.
The charges were announced after Fox attended Charing Cross police station in central London.
Scotland Yard said that the investigation was not part of its Operation Yewtree inquiry into Jimmy Savile and others.
Fox, who rose to fame presenting the charts show on Capital Radio, was a judge on Pop Idol between 2001 and 2003 alongside Simon Cowell, Pete Waterman, and Nicki Chapman.
He also appeared as himself judging a superhero talent show in BBC Three sketch show The Wrong Door.