Randy Jackson’s new adventure

Mariah Carey is tapping a longtime friend -- “American Idol” judge Randy Jackson -- to help her mix things up a bit on her “Adventures of Mimi” tour, which kicks off in August.

“With this tour, I’m going to be working on some different arrangements for some of the older songs, to kind of, like, give it a little more life to them,” Carey said. “That’s not to say they’re going to sound totally different and to freak anybody out ... [but] I love resinging songs to different music.”

Jackson, her musical director, might even join her on a few dates.