song picking! never easy.....please help!?

ok heres the situation. im in 8th grade and in chorus. i have a in school concert in late may early-mid june and i want to audition. the only problem in i cant pick a song. i pick something then i change my mind. even if i really try to stick with something i cant.

rules:

*song must be appropriate (no swearing or inappropriate things)

*cant be too long (over 4:30! 4:00 is ok but a little less would be better)

*it must be easy to learn because if i dont know it and its hard to learn theres a good chance i wont be ready in time for auditions

*it must be easy to get the backround music on a cd

please help!!!

(also nothing to religious because my teacher says some of the people coming to these concerts have different views and one year some people complained about one of the songs that was sung. i wasnt there so i dont know the entire situation but i would rather not have a problem)

Thank you for trying to help if you can comment a link to make things easier for me i would appriciate it because im really running out of time and with all the things i have going on i dont have time to look up original versions of a ton of songs.

thnx! :)