Kingston Rossdale wielded a dress-up pirate hook while hanging out poolside with his dad, Gavin, yesterday at the Eden Roc Hotel in Cannes. Gavin began the day with coffee on the terrace of their luxury suite while his inquisitive boys, Zuma and Kingston, peeked over the glass balcony to observe the sights below. Gwen Stefani missed out on their early morning adventures, as she had to prep for her glamorous red-carpet appearance with Gavin at Brad Pitt's The Tree of Life premiere last night. She stepped out in a hot Stella McCartney onesie, though Angelina Jolie chose to rock an Atelier Versace with a high slit. Over the weekend, however, it was Gwen's rockin abs and bikini body that drew lots of attention.