Lauryn Hill
Lauryn Hill has penned a track railing against social ills during her three-month imprisonment for tax evasion.

R'n'B superstar Lauryn Hill has celebrated her freedom from jail by releasing a new single about societal ills.

The former Fugees singer was released from the minimum security Federal Correction Institution in Danbury, Connecticut after serving her three-month sentence for failing to pay taxes on more than $1.8 million earned between 2005 and 2007.

In her new single entitled 'Consumerism' she launches a brutal attack on ageism, sexism, racism, fascism, "compromised commercialism" and "neo McCarthyism".

The single echoes the criticism of pop culture Hill made shortly before her arrest in 2012.

"Over-commercialisation and its resulting restrictions and limitations can be very damaging and distorting to the inherent nature of the individual," she declared in a diatribe about the music industry.

"I did not deliberately abandon my fans, nor did I deliberately abandon any responsibilities, but I did however put my safety, health and freedom and the freedom, safety and health of my family first over all other material concerns! I also embraced my right to resist a system intentionally opposing my right to whole and integral survival."

During her trial the Grammy-winning musician claimed she was still living under the pernicious economic hierarchy imposed by the slave trade.

She told the court: "I am a child of former slaves who had a system imposed on them. I had an economic system imposed on me."

In April, Hill confirmed on her Tumblr account that she had signed a five-song deal with Sony to help pay her tax evasion charges. This was reported to be worth $1m.

Consumerism will appear on Hill's upcoming project, Letters From Exile.