In this Aug. 6, 2012 photo, singer-songwriter Pink poses for a portrait in Santa Monica, Calif. Now that she has tackled marriage and motherhood, Pink expects her next challenge will be outdoing herself, not other artists, on stage when she goes on tour in support of her new album, "The Truth About Love," releasing on Sept. 18, 2012. (Photo by Matt Sayles/Invision/AP)

In this Aug. 6, 2012 photo, singer-songwriter Pink poses for a portrait in Santa Monica, Calif. The shortage of turmoil in the life of Pink, who gave birth to daughter Willow last year, doesn't mean she's lacking for something to sing about these days. (Photo by Matt Sayles/Invision/AP)

In this Aug. 6, 2012 file photo, singer-songwriter Pink poses for a portrait in Santa Monica, Calif. Pink's new album "The Truth About Love" will be released Sept. 18, 2012. (Photo by Matt Sayles/Invision/AP, File)