Gangsta Boo, a former member of Three 6 Mafia, passed away at the age of 43.

Her rep confirmed the sad news Sunday.

A cause of death hasn’t been confirmed, however TMZ sources say that Gangsta Boo’s death may be linked to an overdose of laced drugs.

The media outlet reported that she was with her brother last night at a local concert in Memphis, and that her sibling started to overdose sometime in the night … requiring hospitalization.

While he ended up being okay, people close to Gangsta’s death scene says that narcotics were found. Police are launching an official investigation. 

Gangsta Boo, real name Lola Mitchell, career officially started in the ’90s, when she linked up with Paul, Juicy J and other founding members of the rap group — which included Lord Infamous, Crunchy Black, Koopsta Knicca and more.

She was one of the only female rappers with the crew, but she held her own and paved her own lane for years as part of T6M.

Gangsta was also featured on Three 6 Mafia’s first 5 studio albums … including their debut record in ’95’s “Mystic Stylez” … as well as other notable projects like ‘Chapter 1,’ ‘When the Smoke Clears’ and even the ‘Choices’ album that served as the soundtrack to the movie.

She left Three 6 in the early 2000s, but went on to have a solo career, putting out a studio album, and several mixtapes.

Gangsta Boo was a staple in the Memphis community and music scene and was beloved by the people there.

R.I.P.