Bit stuck on ideas of what is a suitable song to play for my gcse music acoustic guitar solo piece. Has to be grade 3/4 standard, anyone got any ideas?

Exact song names would be good, and I know like pop songs don't get good grades but I'm into punk pop music so if classical and jazzy stuff can be avoided and more rocky songs thatd be great. I know there are less of those for acoustic guitar though so please suggest anything suitable!

Thanks very much