wango tango

Demi Lovato is on publicity blitz for her new album, 'Demi.' Just before her Wango Tango performance on Saturday (May 11), she stopped to chat about her return to 'X Factor' as well as about her new record -- and her soon-to-be new tattoos!

KIIS FM in Los Angeles has revealed the lineup for its annual Wango Tango concert, which this year features a star-studded roster with Nicki Minaj, Maroon 5, Pitbull, Foster the People, the Wanted, Gym Class Heroes and more. Also in attendance, though not performing, will be Justin Bieber, who will introduce his record label signee, Carly Rae Jepsen.