[artist id="2408193"]Miley Cyrus[/artist] has been tapped to fill in for [artist id="976"]Mariah Carey[/artist], who canceled her upcoming "Today" show concert scheduled for August 28. Carey was set to debut tracks off her new album, [article id="1617460"]Memoirs of an Imperfect Angel,[/article] during her appearance

No reason has been given for the cancellation, according to WENN.com. Cyrus most recently appeared on the Teen Choice Awards, which aired Monday, and [article id="1618490"]received some flak[/article] for the [article id="1617968"]provocative performance of her new single, "Party in the U.S.A."[/article]

Carey recently sang her new single, "Obsessed," on "America's Got Talent," the show hosted by her husband, Nick Cannon.

Cyrus and Carey have recently been linked in another way. Cyrus will be the latest pop star to join the ranks of VH1 Divas when the concert series returns this September. Carey had been one of the original divas when the show made its debut in 1998.

"Adele, Kelly, Leona and Miley have all captured the world's attention with their talent and have earned their designation as [article id="1616642"]VH1 Divas[/article] this year," the show's producer, Lee Rolontz, said, referring to the new lineup. "Don't let some of their young ages fool you -- these women are among the best entertainers in the world and will continue to thrill music fans for a long time to come."