What is the fine-grained topic of the following text: Ace Cafe London hosts special guests Miss January, Miss April and Miss October, of the 2015 "Hotties Calendar", who are helping to raise funds for the charities Mission Motorsport and Soldeirng On – "Bike Night" Friday 10th October. Only return the topic.
"Hotties Calendar" special guests at Ace Cafe London's "Bike Night" for charity fundraising