Any good songs for a dance for our last embly?

Me and my friends in grade 6 and 5 are preforming at the last embly, and we were gonna do boom boom pow but to us, its too hard to dance to. So we are trying to find a new song and we only have 2 weeks to find a song, practice and get costumes. We want it to be special because we are graduating and that means its out last day at our primary school. Could you please help?