Fearne Cotton has faced a fierce backlash after using the so-called catchphrase of her paedophile ex-boyfriend Ian Watkins in a jingle on her Radio One show.
In a campaign to promote the station, the soundbites were used on Fearne's 10am BBC slot on Monday - sparking fury from child campaigners.
Watkins, 36, and mother-of-one Fearne, 32, dated briefly in 2005.
The Lostprophets singer spoke to a female fan from prison the day after admitting two counts of attempted baby rape and bragged that he planned to release a statement joking about his depraved acts.
"It was mega lolz, I don't know what everyone is getting so freaked out about," he said, referring to his crimes.
The phrase "mega lolz" was also used by the Lostprophets on some of their t-shirts. The group also performed in front of a back-drop saying MEGA LOLZ! on the main stage of the Reading Festival in 2010.
Ian Watkins pleaded guilty to two charges of attempting to rape a baby
The Lostprophets perform against a back-drop saying MEGA LOLZ! on the stage at Reading Festival
Child-protection campaigner Dr Sara Payne branded the BBC's use of the phrase as "distressing".
Speaking to The Sun she said: "It will be highly distressing for anyone preyed upon by Watkins to hear these words used light-heartedly on morning radio.
"After what happened with the Jimmy Saville scandal, the BBC should know better."The BBC said that the phrase was "a commonly used colloquialism among young people."