Rapper Eminem is set to play Wellington's Westpac Stadium on Saturday night.

Wellington can get ready to lose themselves in the music – Eminem is coming.

The rapper has announced he'll perform at Westpac Stadium on March 2 – his only New Zealand show – in a move being labelled a coup for the city by the Wellington Regional Economic Development Agency (Wreda).

And Westpac Stadium chief executive Shane Harmon is predicting it could be Wellington's biggest show to date.

It comes after stars like Ed Sheeran, Pink and Adele bypassed Wellington for shows in Auckland or Dunedin instead in the past two years.

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﻿Eminem's visit is the second instalment of his Rapture tour, which came to Auckland in 2014. Other guests in the line-up will be announced soon.

Wreda performances and venues general manager Warrick Dent said he expected the show would be attended by about 40,000 people, and an estimated 20,000 of those would be from out of town.

"Eminem's a big name in music and he's got a massive following here in New Zealand."

There would be a demand for accommodation, but many would stay with friends and family, he said.

"I think we will cope. It will be really busy in town."

Dent said he didn't want to put a figure on the economic boost the city could get from the concert, but said with thousands visiting, it would be "no doubt have a big impact on the economy".

LUCY NICHOLSON/REUTERS Eminem is the biggest-selling rapper of all time and will perform in Wellington in 2019 for one show only in New Zealand.

"It's a real coup for the city and the stadium."

In former years Westpac Stadium has attracted shows from AC/DC, Keith Urban, Guns N' Roses and Elton John.

Dent said Eminem's show would appeal to a "different kind of market".

"We're really excited to have a younger act coming to Wellington of this scale. It will be a range of ages.

"He was relevant then, but he's relevant now."

Harmon said it would likely be the biggest show at the stadium to date.

"It's massive, not just to host an artist of the calibre of Eminem, but to secure a one show only in New Zealand."

In 2000, the stadium hosted Robbie Williams with a crowd of 42,500 – but this was likely to be bigger, Harmon said.

They were still finalising the details of the stadium's design for the show, he said.

AP Tickets for Eminem's Wellington show will go on sale from Tuesday October 23, at 10am.

Eminem had an "absolute renaissance" in the last year with his album Kamikaze, which went straight to number one, he said.

The artist's "surprise" 10th studio album was released, unannounced, on August 31.

Promotion company TEG Dainty president and chief executive Paul Dainty said Eminem was a global superstar and his live shows were phenomenal.

STEPHEN VOSS/SUPPLIED Eminem performed in Auckland in 2014 as part of his Rapture tour, his first ever New Zealand show, and Western Spring's fastest selling show ever.

"We're proud to once again present his New Zealand tour."

Tickets for the show will go on sale from Tuesday October 23 at 10am.

Eminem is a 15-time Grammy award winner and the biggest-selling rapper of all time.

Eminem's only other New Zealand show was at Western Springs in Auckland for 2014's Rapture Tour, the stadium's fastest selling show ever, and the largest audience seen at the Springs since the 1980s.