Hollie Smith and Teeks sing Whakaaria Mai at Christchurch Service for terror victims

Kiwi artists Hollie Smith and Teeks performed a duet of 'Whakaaria Mai' at the National Remembrance Service for the Christchurch terror attacks on Friday.

The pair took to the stage to sing the te reo Māori version of the hymn 'How Great Thou Art' for the crowd of thousands at Hagley Park.

'Bathe In The River' hitmaker Smith wore a white hijab for the performance, while Teeks donned a white suit jacket.

"Just listened to Whakaaria Mai by Teeks, Hollie Smith, & Offering and now I'm trying to hide the fact I'm crying in an open plan office," one Twitter user wrote of the rendition.

"The praise to God is similar to 'Allahu Akbar' - 'God is Great'. Beautiful," commented another.

Cat Stevens and New Zealand singer-songwriter Marlon Williams also performed at the event, two weeks on from the shootings at two mosques that left 50 dead.