It's the second marriage for Carey, who took her first walk down the aisle with record kingpin Tommy Mottola.
Cannon has last been linked with Victoria's Secret model Selita Ebanks, to whom Cannon proposed via the Times Square jumbotron. Five months later, the couple broke up.
Carey beat Elvis in the amount of No. 1 hits on the Billboard charts recently. Her "Touch My Body" was hit number 18 for her.
In addition, her E=MC2, debuted at No. 1 on the charts.