Whats the name of this song?

okay well i was wondering, if you saw the skit the jonas brothers did when they were on SNL, the song struck by lightning, is that a real song or did they just make it up? and what about the other songs they sing on there are they real, i think one is called africa, another is called ask the wizard. i just want to know if they are real songs and if they are, can you tell me who sings them? thankz! oh and if you dont like,care, and/or dont care then dont comment cause then you would be wasting your time!