In Dublin, Kellan Lutz and Nikki Reed attended a signing session to promote The Twilight Saga: Breaking Dawn - Part 2, Matt Cardle visited the Today FM studios and Michelle Heaton appeared on The Late Late Show to talk about her current health worries.
In New York, Anna Sophia Robb was perfectly in tune with Carrie Bradshaw as she continued shooting The Carrie Diaries on location in New York, while LeAnn Rimes stuck to her country roots as she strolled around in a red leather jacket.
In London, Will Young read excerpts from his autobiography Funny Peculiar to a select audience, and in Los Angeles Christina Milian launched her custom Halloween cocktail recipe at Beacher's Madhouse.
See all of these pictures in our gallery below:
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