I think in the future they should just have a regular singer, someone who will perform the national anthem as it is written, and sung in the traditional sense.
No need to put all the bullshit on it and all the crazy vocal runs. Just sing it nice and normal.
This police officer did a fine job.
YouTube - WORST National Anthem EVER.
On a funny note, watch this guy. Also a police officer, he hilariously butchers most of the words, while keeping the melody intact.
YouTube - Cop butchers National Anthem