What is the fine-grained topic of the following text: To mark 45 years since the rock legend played the festival, all those gathered at the main stage, officially renamed Electric Church in the musician's honour, will attempt to break the world record for the most masks worn in one place at one time – by wearing masks with Hendrix's face. Only return the topic.
Attempt to break the world record for most masks worn in honor of rock legend Jimi Hendrix at a festival