Soul star Robin Thicke has pulled out of a planned performance at the Juno Awards in Canada on Sunday (30Mar13) due to ongoing vocal issues.

The singer had been due to hit the stage at the Winnipeg, Manitoba event alongside the likes of OneRepublic, Tegan and Sara and Sarah MCLachlan, but he has since cancelled the gig.

Awards organisers have blamed "mandatory vocal rest" for Thicke's withdrawal, less than three weeks after he had to cancel a fourth show on his North American tour for similar troubles.

However, the news emerged amid growing pressure for event bosses to ban Thicke from the prizegiving over his controversial Blurred Lines video. Protestors recently launched a petition on calling for the singer to be dropped from the Juno Awards line-up as a result of the "blatant sexism, degradation of women and promotion of rape culture" they claim is displayed in the song and its accompanying promo.

Thicke has previously denied the allegations after receiving similar criticism from other women's rights groups.