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
Switch (Iggy Azalea song) "a summer-ready club banger" with an "easily danceable chorus." Lindsey India of "XXL" wrote that the song "could easily become a pop party anthem this summer," while Melody Chiu of "People" named it "powerful". Joshua Espinoza of "Complex" opined that the song "uses the same formula as Iggy’s breakout song 'Fancy,' noting that it has "infectious beat," a "catchy hook" and "cocky lyrics." A few days after the song's release, an unfinished version of its music video was leaked. After this, Azalea canceled the promotion and stated that she wouldn't release the official version. Switch (Iggy Azalea song) "Switch" is