Rihanna's Tuesday concert at 1st Mariner Arena postponed

Rihanna postponed her 1st Mariner Arena concert scheduled for Tuesday night due to the flu and laryngitis, Live Nation announced today.

Baltimore fans are instructed to keep their tickets, as a rescheduled date will be announced at a later date.

Rihanna canceled Sunday's Boston date of her Diamonds World Tour because of sickness as well. She plans to perform again Thursday in Philadelphia, according to Live Nation.