TI has been working with young people to warn them about using guns
US rapper TI has been sentenced to one year and one day in jail after he pleaded guilty to three charges of possessing illegal weapons.
The star, whose real name is Clifford Harris, will have between 30 and 60 days to report to prison.
He has already completed 1,000 hours of community service, which has included warning young people about the dangers of guns, drugs and violence.
Harris pleaded guilty last March after he was arrested in 2007.
The arrest happened close to where he had been expected to headline the BET Hip-Hop Awards in Atlanta.
He had been attempting to buy unregistered machine guns.
He initially pleaded not guilty - and faced up to 10 years in prison for each of the charges.
Harris is best known in the UK for his guest appearance on Justin Timberlake's My Love single.
He won two Grammys in 2007, and appeared alongside Denzel Washington in the Ridley Scott movie American Gangster.
The star is not allowed to own or buy firearms because of a drug conviction dating back to 1998.