| Someday (I Will Understand)|
|Mona Lisa|| Over to You Now|
| Britney Spears|
The Original Doll (Outtake, unreleased lead single)
|Released||September 27, 2005|
|Writer||Britney Spears, Teddy Campbell, David Kochanski|
|Producer||Bloodshy & Avant|
On December 30, 2004, Spears made a surprise appearance at Los Angeles radio station KIIS-FM to premiere a rough mix of a new midtempo track, "Mona Lisa". Spears had recorded the song live with her band while on tour, and dedicated it to all the "legends and icons out there." The lyrics lament the fall of Mona Lisa, calling her "unforgettable" and "unpredictable," and cautions listeners not to have a "breakdown". She also revealed she wanted the song to be the first single of her upcoming album, tentatively titled The Original Doll, and hoped to release it "probably before summertime , or maybe a little sooner than that." In January 2005, Spears posted another letter on her website, saying,
I think I should rephrase myself from my previous letters when I was talking about taking a 'break'. What I meant was I am taking a break from being told what to do. ... It's cool when you look at someone and don't know whether they are at work or play since it's all the same to them. The things I've been doing for work lately have been so much fun, because it's not like work to me anymore. I've been even more 'hands on' in my management and the business side of things, and I feel more in control than ever.
A representative for Jive Records stated that although Spears was working in the studio, "no album is scheduled at the moment" and "there are no plans to service 'Mona Lisa' to radio." "Mona Lisa", written by Spears, Teddy Campbell and David Kochanski, was later re-worked and released in a bonus CD included in the DVD of Britney & Kevin: Chaotic.