Singapore, Dec 20 (IANS): A man in Singapore was sentenced to three years in jail Friday for cyber-stalking US singer Leandra Ramm for six years from 2005 to 2011.

Colin Mak Yew Loong, 38, had pleaded guilty to sending 31 e-mail messages to Ramm threatening to kill or harm her, Xinhua reported.

The prosecution had previously asked for a "global sentence" of between three and four years in jail as Mak has committed a total of 42 offences over a long period of time. But it proceeded on 17 charges, 14 of which were for criminal intimidation.

For criminal intimidation, he could have been jailed up to seven years and fined on each count.

Ramm's nightmare started in 2005, when she was featured on CNN and caught Mak's attention. They never met but Mak contacted her, purporting to champion her music career.

Mak began sending death threats via e-mails and voice messages to the 29-year-old singer when she stopped responding.

The harassment continued till 2011, when US authorities sought the help of Singapore police.

Mak also admitted to harassing and intimidating Hungarian musician Krasznai Tuende Ilona and Ukrainian Veronika Sakhno.

For offences that were not related to the criminal intimidation charges, Mak was given a S$5,000 ($4,000) fine and one day in jail.