Songs for Pop/R&B artist

Details:

18 year old singer from Wales just signed. In studio May 2017.
STYLE: Pop/R&B similar to Ariana Grande - Cher Lloyd & Becky G "Can't Stop Dancing", see clip below.

REFERENCE TRACK - "CAN'T STOP DANCING"
https://www.youtube.com/watch?v=7NwzxGntDgs

CARYS VIDEO - "JUST HOLD ON"
https://www.youtube.com/watch?v=YiZAQcSaXOk