Slayer, a band whose songs include Kill Again, Spill the Blood, and Raining Blood, is deciding whether to continue with its Christchurch show at Horncastle Arena on Sunday.

The show is just 1 kilometre away from the mosque in Deans Ave where a gunman killed dozens of Muslims on Friday.

Canadian singer-songwriter Bryan Adams pulled out of his Sunday show at Hagley Park.

But at this stage the Slayer show is still on.

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VBase, which runs Horncastle Arena, said a decision would be made Saturday afternoon on whether or not the show would go ahead.

Slayer is one of the world's big four thrash metal bands and has been attacked by some for songs that reference Nazism, white supremacy and serial killings.

Its albums include titles as Angel of Death, Hell Awaits, God Hates Us All and Reign in Blood. 

Revolver music magazine recently listed some of the band's most controversial moments, which included referencing Nazism in lyrics and artwork.

Revolver said Geffen Records dropped the band over the album Angel of Death, which was inspired by notorious Auschwitz concentration camp physician Josef Mengele.

A white supremacy controversy erupted when the band covered the band Minor Threat's song Guilty of Being White. The song was already controversial because some considered it a pro-white anthem.

Slayer created more controversy by changing the song's final cry of "guilty of being white" to "guilty of being right". The band admitted it was over-the-top but said it was tongue-in-cheek. 

Revolver said on the same day that al-Qaeda killed nearly 3000 people in the 2001 9/11 attacks, Slayer released its album God Hates Us All.

In 2006 it released Christ Illusion, which included Jihad a song about the terrorist strikes that included words written by Mohammed Atta, one of the ringleaders of the 9/11 suicide mission.