Britney Spears just signed a massive new music deal ... one that sells her rights to her extensive music catalog ... TMZ has ...

Britney Spears has sold the rights to her music catalog to publisher Primary Wave in a reported $200-million deal.

Britney Spears posted an Instagram post on Wednesday, Feb. 4, and claimed that she’s “lucky to be alive” despite how her family "treated" her and managing ongoing family tensions.

Britney Spears' crucial business decision comes nearly five years after she was released from her 13-year-long ...