Meanwhile, Katy Perry bags second UK Number One with 'Prism'
Rapper also praises Miley Cyrus, calling the twerking pop singer a 'really clever girl'
Pop singer's US Number One hit finally became available to download in the UK at midnight today (October 20)
'Royals' star keen to pen hits for other artists, including a K-Pop girlband
16 year old singer says she is surprised nobody else wrote something similar before she got the chance
16-year-old from New Zealand is youngest singer to top the Billboard Hot 100 since Tiffany
New Zealand singer-songwriter reveals in Stateside success
The New Zealand singer-songwriter has hit the top spot with 'Royals'
Singer's debut full-length LP will be put out on October 28