Lorde's Grammy performance her biggest show yet

Lorde is set to perform at Friday's Grammy Awards nominations. Photo / AP

Lorde's Royals could be crowned with Grammy gold.

The breakthrough singer will perform at the Grammy Awards nominations special on Friday (Saturday NZ time) in Los Angeles.

"This will be the greatest number of people to see her in one place at one time," show producer Ken Ehrlich said.

More than 28 million people tuned into last year's Grammy Awards nominations broadcast, and the show received nearly 25 million comments on social media, www.zap2it.com reported.

Lorde's biggest concert's to date include performing to around 20,000 people at Australia's Splendour in the Grass earlier this year, and she performed an hour-long show for The Late Show with David Letterman that was live streamed online.

The 17-year-old New Zealand star released her debut, Pure Heroine, on September 30 - the final day to be considered for Grammy nominations.

Royals has held the top spot on Billboard's Hot 100 chart for nine weeks, but lost her spot today to Miley Cyrus' Wrecking Ball.

If Royals is nominated for a Grammy Award, Lorde will have a tough decision to make: She is scheduled to headline the Auckland leg of the Laneway Festival on January 27 - almost exactly the same time as the Grammy Awards are held in Los Angeles on January 26.

Lorde joins Macklemore & Ryan Lewis for The Grammy Nominations Concert Live!! Countdown to Music's Biggest Night, to be held at the Nokia Theatre LA Live.

Robin Thicke will be joined by TI and members of Earth, Wind & Fire for Blurred Lines, the year's longest running No. 1 hit. Keith Urban will take the stage with R&B singer Miguel to sing Bill Withers' Ain't No Sunshine.

"This is really Keith Urban's idea," Ehrlich said, who added that the country star was impressed with Miguel's performance at this year's Grammy Awards.

Rapper-actor LL Cool J will host the one-hour special, which will air on CBS in America.

The show will also feature pre-taped performances by Taylor Swift and Katy Perry.

- AP