On a stage, in a club, in a church, or in a touring rig — live mics live a hard life and need to keep working through it. The names you see on every stage in the world.
Live vocal microphones live a hard life — dropped, sweated into, gripped, fed back through monitors, and kept on tour buses. The standard pick is the Shure SM58, which has been the industry default since 1966 because it survives all of that and still sounds good.
Studio mics often have super-hot output, fragile capsules, and pickup patterns that hate stage feedback. Live mics are built differently: tighter polar patterns to reject the wedge monitor pointing at them, tougher capsules, and a sound voiced for the live PA system. Don’t bring your Neumann to a club.