Emma moves to Sydney because of her Mum's Advertising business growing, which meant she has to start a new life. This meant a new school, which she didn't know her favourite singer, Ruel goes to.
YN just moved from L.A. to Miami because her mother Kimberly wanted to find a "new".....if you know what I mean. So YN got to start all over again up there but there's a little surprise just waiting on YN.