Roberts penned the song with Dimitri Tikovoi and Maya von Doll with whom she also worked with on "Beat Of My Drum." Lyrically, it is about an up and down relationship and Roberts explained to Digital Spy
: "I think 'Yo-Yo' is about love not always being rosy. Sometimes people are really hurting in love and it's a really powerful thing - it can either make your heart or break your heart. So many people go through that and so they'll be able to relate to the song and that's why I decided to write about it."