[1] The single was written by group members Amy Heidemann and Nick Noonan, and songwriter Ester Dean.

[1][2] "I Want It All" received positive reviews from mainstream music critics and fans alike.

[2] Some people think that "I Want It All" was an interesting departure and prefer it over their previous single, "Acapella".

Comparisons have been made to Justin Timberlake's "Take Back the Night" because of its slick disco-tinged pop tune.

[3] MTV Buzzworthy noted that "I Want It All" has a mixture of Justin Timberlake's "Take Back the Night" and DJ Cassidy, Jessie J and Robin Thicke's "Calling All Hearts".