INDIANAPOLIS - Drum Corps International will Thursday begin its annual DCI World Championships at Lucas Oil Stadium in downtown Indianapolis. The event, which runs through Saturday, will feature 38 corps competing in front of tens of thousands of attendees.

DCI says the 25 highest-ranking corps will advance to the semi-finals, which take place Friday. The Top 12 will advance to the finals on Saturday to compete for the title of World Champions. 

The corps will prepare for the competition by rehearsing Thursday at Indianapolis-area schools. You can learn more about the DCI World Championships by clicking here.