In music, a supergroup is a band made up of members who are already famous from being in other bands.
Supergroups are usually very popular and people are excited to hear their music.
Examples:
The supergroup was formed by famous musicians from different bands.
I can't wait to see the supergroup in concert!
The supergroup's new album is coming out next month.
The supergroup's music is a mix of different styles.
Everyone is talking about the new supergroup in town.
The supergroup's first song became a big hit.