WELLINGTON (Reuters) - Rolling Stones guitarist Keith Richards had surgery to relieve a blood clot on his brain caused by an accident while holidaying in Fiji, local media reported on Monday. The 62-year-old rocker was recovering in New Zealand after "brain surgery", Australian and New Zealand media reported. A spokeswoman for the band said last week that Richards only suffered a mild concussion from an accident in Fiji in late April and would not require surgery.