Major labels are large music companies that have significant resources and influence in the music industry. They typically sign well-known artists and manage the production, distribution, and marketing of their music. Some of the biggest major labels include Universal Music Group, Sony Music Entertainment, and Warner Music Group. These companies often have extensive networks that help promote their artists globally. In addition to signing artists, major labels also invest in music production and provide support for tours and merchandise. They play a crucial role in shaping popular music trends and often have the power to determine which songs become hits.