" Really Do n't Care " featuring British recording artist Cher Lloyd , was released as the fourth single from the album on May 20 , 2014 . The week before it was officially serviced to US radio , it charted at number 7 at Mainstream Top 40 , being her fourth top 10 single on the chart . It later on peaked at number one on the '' Billboard '' Dance Club Songs . The song debuted on the US '' Billboard '' Hot 100 at number 98 , and has peaked at number 26 . Lovato performed the song on several occasions before its official release as a single . Once released in May 2014 , she performed the song on the Season 13 live final of '' American Idol '' , '' Good Morning America '' Summer Concert Series , '' Late Night with Seth Meyers '' , and the 2014 Teen Choice Awards . " Really Do n't Care " was later certified platinum in the United States
2014 Teen Choice Awards
2014 Teen Choice Awards
Demi (album)