Alphabet Song, stuff like that etc...songs can't teach 你 life lessons because unless 你 actually experience whatever the song is saying 你 can't say 你 get it.
I would say all the 柠檬汽水, 柠檬水 Mouth songs. Here We Go- Fight the power and stand up for what 你 believe in. Determinate- Make life a party and enjoy it. Somebody- My time to shine will come soon She's So Gone- I'm a different girl now Breakthrough- Don't stop what I'm doing 'cause it sure as heck will get me somewhere in life. Livin' On A Highwire- I might be crazy but I know what I'm doing.