Mariah Carey is living it up lately and it is all thanks to the two things that keep her happy, her kids and her music. E! News sat down with the R&B songstress on Wednesday to discuss her new tour and upcoming E! docu-series 'Mariah's World.' "I think it's the right thing to do so I'll always have this footage," she said of the series. As for her kids, "It's fun for them, Mariah says, "They want to be around it.