Mrs D

I think you have some great options here. I like the idea with the first one, but you will need to be careful as it could potentially look a little 'cheesy'. The second option is a good song, but you may struggle to access the level 4 criteria with that. The Scientist is a very recognisable song and you would also need permission from Coldplay, but the idea of the rewind could be interesting. You could ask your target audience for some feedback to help you make the best decision.