A concert that was supposed to feature American recording artists Chris Brown and Trey Songz has been cancelled after Brown was denied entry to Canada.

Brown tweeted Tuesday afternoon that he would not be able to perform at his shows in Montreal at the Bell Centre and Toronto at the Air Canada Centre, scheduled for Tuesday and Wednesday because “the good people of the Canadian government wouldn't allow me entry.”

Brown claimed on Twitter that the show was sold out. He later deleted both his tweets on the subject of the cancelled shows.

It is not clear why Brown was turned away. Stephane Malepart, spokesperson for the Canada Border Services Agency, said in a statement that they could not comment on Brown's case specifically due to Canada's privacy laws. He did say that all people who present themselves at a port of entry must "meet the requirements to enter and/or stay in Canada."

"Admissibility of all travelers is decided on a case-by-case basis and based on the information made available at the time of entry," the statement reads.

The Citizenship and Immigration website states that people who have been convicted of a crime may be deemed inadmissible for entry to Canada.

Brown pleaded guilty to felony assault in 2009 after an incident involving then-girlfriend and fellow recording artist Rihanna.

He pleaded guilty to misdemeanor assault after getting into a brawl and assaulting a man outside a hotel in Washington D.C. last year.

However, under Canada’s immigration law, a person who has committed a crime may be “deemed rehabilitated” and allowed to visit the country.

It is also possible to be granted a temporary resident permit if the person has “valid reasons to be in Canada.”

"To be eligible for a temporary resident permit, your need to enter or stay in Canada must outweigh the health or safety risks to Canadian society, as determined by an immigration or a border services officer," according to the CIC website.

Concert promoter evenko wouldn't confirm what steps Brown took, if any, to make sure he would be allowed into the country.

Brown tweeted about being turned away from the border Tuesday afternoon and on Twitter, evenko told concerned ticket holders that the show would go on as planned. But as of around 4:30 p.m. started saying the show had been cancelled.

Ticket holders will be automatically refunded on the credit card used to buy their tickets, or can head to the evenko box office as of Thursday at noon for a refund if they paid cash or with a debit card. Evenko warns it may take up to 10 business days for refunds to appear on credit card statements.