the engine we'll be cruisin' watch it go down/Get in my truck and I'll be ridin' with my Top Down". Brennan Carley of Spin described it as "an unknowingly filthy anthem about riding in the car". During the hook, the phrase "electric city" is repeated several times. The song's hip hop-inspired production was also compared to "Fancy" by rapper Iggy Azalea featuring Charli XCX. The second track "Boss" features trumpets, handclaps and heavy bass, creating a rhythmic, militaristic sound. The lyrics feature several cultural references. For example, the song's first verse refers to hip hop dance movement "Nae Nae": "Everyday is payday, swipe my card, then I do the nae nae." The second line clearly cites the rappers Kanye West and Ray J: "You're talking to a lady, I want a Kanye and not a Ray J." During the chorus, the group also praised female icons Michelle Obama and Oprah Winfrey. The song was compared to Destiny's Child's "Independent Women". Christina Garibaldi from MTV commented that the group "proudly sing about the fact they don't need a man as they "pledge allegiance to my independent girls in here". In an interview with Garibaldi, the group said "the whole point of this song is for girls who are our age to turn it on and feel confident and empowered because at this age being insecure is such a common occurrence. So we think when you turn that song on, you feel sexy and feel good about yourself." The next track, "Sledgehammer", is '80s-inspired synthpop. It features EDM beats, and heavy synths. Lyrically, the song uses "Sledgehammer" as a metaphor to express the physical effects of love. The fourth track "Worth It" features a guest appearance by Kid Ink. Written from the perspective of a woman telling a man that she is "Worth It", it implies a sexual connotation. However, like other songs on Reflection, "Worth It" could also be interpreted as a feminist song. Jeff Benjamin of Fuse expands this notion by writing the song can inspire "young girls to truly believe they're 'Worth It' and can own Wall Street or any other place on which they set their sights". Its instrumentation consists of horns sample, trance synths and a trap-inspired Roland TR-808 drum machine. Critics compared the song to "Talk Dirty" by Jason Derulo (also produced by Norwegian production team Stargate and musician Ori Kaplan) for a similar use of