 Nicola Roberts , who began her musical career as one fifth of the band Girls <unk> , struggled with loneliness and increasing isolation during her time with the group . A busy schedule and constant media criticism found her describing the time as a " blur " . Her exhaustion and troubles with negative media comments led to a state in which she had to harden herself , claiming that inside she was " dying " . These events inspired her debut album Cinderella 's Eyes . " Yo @-@ Yo " was the first song she had written with Maya von <unk> and Dimitri <unk> for the album . The recording was also one of the first songs Roberts wrote , and it helped define her musical style . Roberts <unk> about the production of the track , writing that : 
