Celebrity pictures: William H Macy, Katy Perry, Tulisa

Today's celebrity pictures include ecstatic Hollywood couple William H Macy and Felicity Huffman receiving their stars on the Hollywood Walk of Fame, and The Muppets star Jason Segel attending the premiere of Jeff Who Lives At Home.

In New York, Julianne Moore and Tom Hanks go to their premiere of HBO political drama Game Change; and in Paris, a pastel-coloured Katy Perry arrives for the Miu Miu show for Fashion Week.

In London, a tanned Tulisa Contostavlos heads to Aura nightclub, Kiefer Sutherland attends the launch of Sky drama Touch, and Goldie Hawn, daughter Kate Hudson and beau Matt Bellamy attend The Hawn Fundraiser at Annabels.