What are some ideas for doing you tube videos? i wanna sing, but how should i do it?

me and my crush are gonna make you tube videos together, since were gonna do our video from each different locations were gonna edit it to like we were together when in reality we weren't, i'm 14 he's 15.. but yeh if anyone knows Christina grimmie im going to sing her song "advice" with a little bit of piano. and my crush is gonad dance and do flips and stuff :)