What should i play at my upcoming school concert

Later this year i will be most likely performing a song on guitar for my school, and i definitely am considering which tally hall song to choose! I want to do vocals with guitar, but ill see how that will turn out. For now all i want are relatively mainstream songs that some people would know, like Ruler of Everything or Banana Man. The only limitations are that it has to be a song that would fit best for 1 singer (I dont think anyone else is performing with me and if so they probably wont sing with me) and it has to be the least suggestive (yes banana man still counts but probably not two wuv). Thanks for reading!