Following Hollywood's reported disappointment in the lack of sales longevity of the Hilary Duff album and the chart performance of "Fly", all further single releases from Hilary Duff in the United States were cancelled and the Most Wanted project was quickly conceived. The first one we're going to release ['Wake Up'] is very dancy, kind of pop – not '80s, but kind of with that in it, so it's very fun.The following month, in an interview with MTV News, Duff said that she had been working with brothers Joel and Benji Madden, of the American rock band Good Charlotte, and Jason Epperson (together known under the production name the Dead Executives) to write and produce new songs for the compilation. Another ['Beat of My Heart'] is more techno, like DJ Sammy almost, and the third one ['Break My Heart'] is a pop-punk song, more like [Good Charlotte's] music." Duff described working with them as pleasant, and the music as a new milestone in her career, stating that working with "people you're close with makes a world of difference when you're recording and being creative." A deluxe edition of the album, subtitled The Collector's Signature Edition, was also released, containing an acoustic version of "Who's That Girl?
Although he wrote that Most Wanted "isn't a terrible album by any means, it's not particularly a good one, since Duff's two pop albums [Metamorphosis (2003) and Hilary Duff (2004)] have distinctive personalities that don't necessarily mesh together [...], and are both more fun than this." Anthony Miccio, from the Baltimore City Paper, wrote that the album "doesn't signify the closure of a brief career" but is "meant to satisfy an audience that won't be offended by the opportunity to buy their favorite songs again and again." Talia Kraines of BBC Music commented that " ...The song displays elements of country music and the lyrics are a "statement of purpose".Duff sings the chorus, backed by a guitar: "It ain't no shock/ The girl can rock".In the United States, the album debuted atop the Billboard 200 chart, becoming Duff's second number one album there.It was later certified Platinum by the Recording Industry Association of America (RIAA).