One member of the cluster was previously believed to be the most massive star known, but is actually a triple star system of huge stars, all of which will go supernova.

Triple star system burns bright in new image from the James Webb Space Telescope

Source: space
Source Link: https://www.space.com/astronomy/james-webb-space-telescope/triple-star-system-burns-bright-in-new-image-from-the-james-webb-space-telescope