Looks like Mariah Carey and Nick Cannon have taken up an extended stay in Las Vegas. After shooting Mariah’s music video there last week, Mr. and Mrs. Cannon attended the Andre Agassi Charitable Foundation’s 13th Grand Slam for Children at Wynn Las Vegas. Lookin’ good.

Mariah and Sheryl Crow

Mariah and Nick with tennis stars/couple Steffi Graf and Andre Agassi.