Three Kiwi divas dominated local music sales in 2007, according to charts data published by the Recording Industry Assn. of New Zealand.

Although the complete year-end figures won't be available until January, the No. 1 artist of the year is set to be Hayley Westenra, whose "Treasure" (Universal) was the biggest-selling album, according to a combination of over-the-counter and digital sales up to Dec. 9.

Two other NZ female artists also cracked the top 10. Sony BMG's Brooke Fraser was at No. 4 for "Albertine," while Hollie Smith was at No. 10 for her debut album "Long Player," which was released through the EMI-distributed Soundsmith label.

Fraser also enjoyed success in the radio airplay chart with the single "Shadowfeet," the second-most played track of the year. However, the top spot went to another local act Opshop for their song "Maybe", which is also currently at No. 11 on the singles chart.

The NZ act with the biggest-selling single was Atlas's "Crawl" (Elements/Warner), at No. 6 for the period ending Dec. 9.

This year is the first time that digital downloads have been included in the RIANZ charts, which are compiled by Auckland-based Media Sauce.