Confident (album) move on and be happy with someone else. The song incorporates pop and soul influences, and is centered on a piano melody, with a stripped down production aimed at highlighting Lovato's vocals. "Stone Cold" received comparisons to Lovato's 2011 song "Skyscraper" and the work of English singer Adele. The album follow with the trap-inspired song "Kingdom Come" it features vocal appearance by rapper Iggy Azalea. Several critics noted that the song is comparable to Azelea's "Black Widow" (2014) featuring Rita Ora. "Waitin for You" featuring vocals by singer Sirah, musically, it's an R&B and hip hop song that starts with
Iggy Azalea Hip-Hop Artist. In November 2014, she was placed at number-one on the "Maxim" Hot 100 list in Australia because "few Aussies, female or otherwise, have had a bigger 2014 than Iggy." Azalea also ranked at number 46 on the 2014 edition of the AMID (Australasian Music Industry Directory) Power 50, a list that compiles the most influential figures in the Australasian music world. Azalea received four nominations at the 57th Annual Grammy Awards, including Best New Artist, Record of the Year and Best Pop Duo/Group Performance for "Fancy" and Best Rap Album for "The New Classic". Azalea joined the list