This weekend, Cameron Diaz and Leonardo DiCaprio attended the Tag Heuer Yacht Party in Monaco. Both actors have recently collaborated with the watchmakers, designing pieces for their collection with a portion of the proceeds going towards their chosen charities.

Tulisa and Chelsee Healey spent the day by the pool as they continued their holiday in Marbella. The pair later enjoyed an evening out at the popular Tibu nightclub where stars from TOWIE were also partying.

Amanda Bynes tried a new disguise as she stepped out in New York. The actress wore a brunette wig to cover her new short hairstyle. It's been a bad week for Bynes, who has made allegations about the treatment she received while in police custody.

Elsewhere in the US, Ke$ha took her 'Warrior' tour to Atlantic City, and former Pussycat Doll Ashley Roberts enjoyed a night out in Los Angeles.

In the UK, Kitty Brucknell and The Cheeky Girls performed at Birmingham Pride, The Saturdays appeared as a four-piece at Radio 1's Big Weekend and Kate Moss was seen leaving a friend's house in Chelsea in the early hours of the morning

Fergie also performed at the Life Ball in Vienna and Jessie J played at Morocco's annual Mawazine Music Festival.

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