"Wannabe", the most emblematic song of the Girl Power philosophy, was chosen as the first track and lead single of the album. It highlights the slogans the group tend to cite like the union and solidarity between friends and the power exercised by women over men. The second single "Say You'll Be There" described the things the group had been through together and how they had always been there for each other. It received mixed reviews; some critics praised it as a catchy song, while others dubbed it as merely a bid for credibility, while others described the lyrics as "confusing". The third single "2 Become 1" focused upon the bonding of lovers, and how the bond can become so strong that they practically become one entity, through the act of sex; in addition, the lyrics address the importance of contraception.