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
Impossible Is Nothing (Iggy Azalea song) and underdog triumphalism. The song was released as a promotional single from the album on 9 March 2014. It received mixed reviews from music critics who were divided on the sincerity and originality of the track's lyrical content. Upon release, the song debuted within the lower regions of the UK Singles Chart and the UK R&B Chart. "Impossible Is Nothing" was written by Iggy Azalea, The Invisible Men, Jon Turner, and Jon Mills of The Arcade for Azalea's debut studio album, "The New Classic" (2014). It contains an interpolation of "Proust" by French-Lebanese composer Gabriel Yared. The song was produced