Definite Article with Groups
Rule 7.4: Use the definite article with names that refer to a group. (Families, Bands, Mountain Ranges, Groups of Islands, Sports Teams, etc.)
Everybody want to keep up with the Joneses. (The Jones Family)
The highest mountains in the world are located in the Himalayas.
The Beach Boys were a famous rock band from the 1960s.
The New York Yankees are a well-known baseball team.