1. "Cool" (2004)
Stefani's "Cool" is both sparkling and heartbreaking, a specialization of the star. The single was the most simple, straightforward track from her solo debut Love. Angel. Music. Baby. and highlighted the type of bitingly reflective capabilities she has always had when tackling the issue of remaining in a band with ex-boyfriend Tony Kanal. "Cool" is the epilogue to "Don't Speak," exposing once and for all that time heals (most) wounds.