Annie Lennox has backed Sinead O'Connor's criticism of record companies.
She's accused music bosses of "peddling highly styled pornography with musical accompaniment".
Annie Lennox says she is "disturbed and dismayed by the recent spate of overtly sexualised performances and videos".
Miley Cyrus and Rihanna's latest videos have triggered fresh concern about the sexualisation of pop.
Vivienne Pattison, from Mediawatch UK, says popstars have to take responsibility for their own image.
Last week, Sinead O'Connor appeared to offend Miley Cyrus when she wrote an open letter to the singer pleading with her to not allow the music industry exploit her.
