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1 November 2012, 11:00
The 'Diamonds' singer was given a tiara and a key to the city by the Mayor of West Hollywood.
Rihanna celebrated being named Queen Of West Hollywood last night by posing for pictures with her mum on the red carpet.
The 'You Da One' singer attend the special Halloween Parade Awards ceremony where she was presented with a silver tiara and a key to the city by the Mayor of West Hollywood on Wednesday evening (31st October).
Rihanna opted for a demure outfit for the presentation event and wore a sheer black top, fitted black skirt and black bumps as she posted on the red carpet with pictures with her mother Monica Braithwaite.
Check out a picture of Rihanna celebrating Halloween with her mum this week below:
This week Rihanna was announced as one of the final five shortlisted for the Worldwide Prize at this month's MTV Europe Music Awards 2012 (EMAs).
The Queen Of West Hollywood parade event also saw Rihanna announce plans to launch her mini '777' tour in two weeks, which will see her perform in seven different countries over the course of seven days by travelling around the world in a Boeing 777 jet.
View a picture of Rihanna celebrating with her crown below:
Rihanna's '777' tour ends on 19th November to coincide with the release of her new album 'Unapologetic'.