In pictures: 100th birthday

In August 2000 tens of thousands of well-wishers decked in red, white and blue gathered outside Buckingham Palace to celebrate the Queen Mother's 100th birthday. Here are some pictures from the day.

The Queen Mother makes her way to Buckingham Palace with her grandson, Prince Charles

Crowds gather to catch a glimpse of the Queen Mother as her carriage heads for Buckingham Palace

The Queen Mother waves from the balcony of Buckingham Palace

The Queen Mother is joined by her daughters, Princess Margaret and Queen Elizabeth

Crowds gather around the Queen Victoria Memorial to sing Happy Birthday

The crowd is treated to a view of the Royal Family together

Town criers Steve Clow and Peter Baker ring a birthday greeting for the Queen Mother

Press photographers send pictures of the celebrations around the world

Flags and flowers: Jenny Clifton, of Folkestone, wears a home-made hat

Fans enjoy breakfast after a night camped outside Buckingham Palace

Royal fans Connie Nisinger and Phyliss Barnes travelled from the US for the celebrations

A sea of goodwill: Tens of thousands line The Mall to mark the birthday celebrations