Who says (Selena Gomez & the Scene) -- All day (Cody Simpson) -- Tonight, tonight (RD version) (Hot Chelle Rae) -- 21st century girl (Willow Smith) -- Beautiful soul (Jesse McCartney) -- Not your birthday (RD version) (Allstar Weekend) -- Watch me (Bella Thorne and Zendaya) -- Baby (Justin Bieber) -- ...Baby one more time (Britney Spears) -- Young forever (The Ready Set) -- Determinate (Bridgit Mendler, Adam Hicks, Naomi Scott, Hayley Kiyoko) -- My girl (RD version) (Mindless Behavior) -- Waiting outside the lines (Greyson Chance) -- Wake up (Hilary Duff) -- Keeping secrets (Kicking Daisies).