Simplify the following text for a Grade 8 native English-speaking person.
Original: In the same year YCAT celebrate their 25th anniversary with two gala concerts at the Wigmore Hall which bring together former YCAT award winners as well as contemporary YCAT artists .
Simplified: In 2010 YCAT celebrates its 25th anniversary with two gala concerts at the Wigmore Hall . YCAT award winners from previous years will be playing together with the YCAT winners of today .