Freddie Starr has been released on police bail after being questioned by detectives investigating the Jimmy Savile sex scandal.
The 69-year-old had been arrested in Warwickshire on suspicion of sexual offences by officers working on Operation Yewtree.
He was bailed during the early hours of this morning.
A Metropolitan Police spokesman said: "Officers working on Operation Yewtree yesterday (Thursday) arrested a man in his 60s in connection with the investigation.
"The man, from Warwickshire, was arrested at approximately 5.45pm on suspicion of sexual offences, and was taken into custody. He has since been bailed."
Starr, who denies any wrongdoing, had said at the weekend he was prepared to speak to officers after becoming publicly linked with the Savile scandal.
Starr appeared with Savile on an episode of BBC show Clunk Click in 1974 alongside Karin Ward, who has since accused him of molesting her.
Ms Ward, who was 14 at the time, was the main interviewee in the ITV documentary which exposed the Savile sex abuse scandal.
Starr denied touching her inappropriately and said he had not appeared on the show.
His lawyer later issued a statement claiming he had been mistaken and that he was on the show.
Starr's arrest follows that of Gary Glitter, who was questioned at a central London police station on Sunday after being detained at his home in the capital.
The former pop star was later released on bail.
Scotland Yard is leading a national investigation into Savile, who died last year at the age of 84.
He is now believed to have been one of the UK's most prolific abusers, with about 300 possible victims.
The BBC has launched an inquiry into the culture and practises at the corporation in the era of Savile's alleged sexual abuse.
It is also looking at the decision-making process which saw a Newsnight investigation into Savile's activities shelved.
The review, led by Nick Pollard, former head of Sky News, will report back on its findings later this month, it was announced earlier.