"Cruise Control", featuring reggae artist Damian Marley, is influenced by R&B and reggae, and finds her adapting to the genre by imitating Jamaican phrases, accents and styles of singing. "I Stay in Love" was released as the fourth and final single from the album. Written by Carey and Bryan-Michael Cox, is a mid-tempo "beat-driven" and "piano-laced" ballad, that is influenced by pop and R&B music genres. The song's instrumentation is derived from a piano melody, and is backed by a strong computerized drum-beat. Its lyrics find Carey as her most vulnerable; she describes old times she shared with her lover, and that even though "we said let go", and "inside she knows it's over", she still "stays in love with him". Featuring American rapper Young Jeezy, "Side Effects" describes Carey's abusive relationship with Tommy Mottola, her ex-husband. During the first verse, she discusses the pair's background, and how she was young and naive, and believed everything he preached to her. The lyrics read "Keepin' me there, under your thumb / Cause you were scared that I'd become much / More than you could handle," she confesses, and refers to herself as "Shining like a chandelier / That decorated every room inside / The private hell we built / And I dealt with it / Like a kid I wished / I could fly away." Sarah Rodman from "The Boston Globe" described it as "another look at her fractious marriage to Mottola", and wrote "Although the union ended in 1998, Carey is still suffering, including dreams of the 'violent times' and 'sleeping with the enemy'. Interestingly, her vocal approach here is almost emo, as she hits her rock-solid middle register and refuses to be held captive by the demons of her past." MTV News writer Jennifer Vineyard described the song in detail: