MIMOSA (Beta Crucis). Few are the first magnitude stars, as their apparent brightness requires either great luminosity, closeness, or both. Mimosa satisfies the first requirement.
https://github.com/davepinch/pinchy.cc/blob/master/content/sites/stars.astro.illinois.edu/sow/mimosa/mimosa.md
The origin of its name, which comes from Latin and means “actor,” is not clear, but may derive from that of the beautiful southern-hemisphere flower.
Mimosa itself is clearly above the cutoff of 8 to 10 solar masses, beyond which stars explode as supernovae. It has perhaps only six or so million years left to go.