Thursday 12th July 2012 by David Renshaw | Photos by WENN.com

Music stars and stalkers - a terrifying history of obsessed fans

No.1 hits and restraining orders go hand in hand

Usher: ''Climax'' star Usher took a restraining order out on Darshelle Jones in 2012 after becoming alarmed at her belief that she was married to him. In court Usher revealed that Darshelle turned up at his home in Georgia, hammering on the front door and that he had to call police.

George Harrison: Cristin Keleher, 34, hit the headlines in December 1999 when she entered the Hawaii home of Beatles legend George Harrison and cooked herself a frozen pizza.

Sheryl Crow: Former US Navy diver Ambrose Kappos stalked Sheryl Crow, claiming he was her ''spiritual partner''. Kappos was arrested in October 2003 after breaking into the Manhattan venue where Crow was due to perform.

John Lennon: Surely the most famous case of musicians and their stalkers, Mark Chapman shot John Lennon dead in New York in December 1980.

Britney Spears: Lawyers acting for Masahiko Shizawa in 2004 tried to claim that the ''VIP'' millionaire from Japan was innocent of stalking the ''Toxic'' star and that she had misunderstood cultural differences. Spears eventually got the restraining order against Shizawa that she desired.

Janet Jackson: Jackson claims to have been stalked by Robert Gardner for over 10 years. In 2005 Jackson filed an affidavit against Gardner, claiming "It is only a matter of time before he has the opportunity to harm me."

Leona Lewis: It was during a 2006 book signing that X Factor winner Leona Lewis was assaulted by a crazed fan. The unnamed man was arrested shortly after the incident, which took place in a London branch of Waterstones.

Selena Gomez: In January 2012, Selena Gomez took out a restraining order against Thomas Brodnicki. The 47 year old admitted that he has had ''''conversations with God'''' about murdering the teen star. Gomez, unsurprisingly, admitted to living in ''''extreme fear'''' over Brodnicki.

Justin Timberlake: Karen Mcneil was descried as a "mentally unstable celebrity stalker" in 2009 after making numerous attempts to get into Timberlake''s home.

Madonna: In February 2012 Robert Hoskins escaped from a mental hospital after serving ten years for breaking into Madonna''''s estate and threatening to ''''slit her throat''''. There were fears that Hoskins would target actress Halle Berry before he was caught 10 days later.

Joe McElderry: The X Factor winner was harassed by Ennis McBride, who was convicted on 11 September 2012 of stalking the star. It wasn't the most horrific case of all time - McBride interrupted the singer in the bath and attempted to give him some opera CDs.

Tags: Usher

With huge musical success come many great things; money, fame and the adulation of millions. However, being recognised on a huge scale can also bring you to the attention of less than savoury characters.

There is barely an A-List star in the world who has not had to endure a stalker at some point in their career with many bosating more restraining orders than hit singles.

Take Usher, below, who had to get a court to intervene between himself and Darshelle Jones earlier this year. The woman turned up at his home in Georgia and, when police arrived, told anyone who would listen that she and Usher were married.

We have compiled a list of ten of the most deranged and scary music stalkers below, take a look through the case studies now.