Not many holiday pics this week - it looks like the celebs are finally back at work. Jessica Alba has not only dyed her hair for Sin City 2 but she's been in training for her role in the film at a firing range. Emma Roberts was caught in the rain on set - luckily she had a yellow raincoat - and Fearne Cotton spent the weekend presenting from Reading Festival with fellow Radio 1 DJ Greg James. We've loved getting a sneaky glimpse at Mel B's behind-the-scenes Spice Girls snaps from the Olympics Closing Ceremony and Alexa Chung and Whitney Port have provided the style with @WhitneyEVEPort tweeting 'Rocking my @officialwhitneyeve for #sportsgirl! Check it!' Yes mam!