Radio DJ Dave Lee Travis has been arrested on suspicion of fresh sex abuse allegations by officers working on Operation Yewtree.
Travis, 67, was rearrested when he answered bail at a police station after previously being arrested on separate historic sex offences.
He has been bailed following his latest arrest and is set to return in April.
A Metroplitan Police spokesman confirmed that a man in his 60s from Bedfordshire has been "further arrested on suspicion of sexual offences in connection with further allegations made to Operation Yewtree".
The former Radio 1 DJ was arrested then released on bail in November following allegations that he groped or molested two women in the 1960s and 70s.
After his first arrest, Travis denied the accusations against him.
He said: "I categorically deny that there is any substance in either allegation and I'm genuinely surprised that allegations of this nature have been made. I totally refute any impropriety."
He also was adamant that the accusations do not involve children.
Travis's new arrest comes as one of the UK's top prosecutors said that a number of high-profile celebrities will be arrested as part of Operation Yewtree.
Other big names already arrested under Yewtree include publicist Max Clifford, comedian Freddie Starr and presenter Jim Davidson. All have denied the allegations against them.
Former pop star Gary Glitter has also been arrested but has not made a statement.
More than 30 officers are working on Operation Yewtree, which was set up in the wake of the Savile sexual abuse scandal.
A report revealing the extent of Savile's abuse showed the former BBC presenter had 214 recorded criminal offences lodged against him across 28 police force areas. The report concluded that Savile, who died in 2011, had abused 450 victims aged between eight and 47, over a 54-year-period.
The report described Savile as a "prolific, predatory sex offender" whose scale of abuse was "unprecedented in the UK".