YOU CAN'T FREEZE IT
Well, you CAN...but it's a sloppy, slurpy, slushy, wierd-expanding-get-beer-everywhere-on-your-table kinda science experiment.
If you do freeze your beer in a can, crack it open and IMMEDIATELY pour at least half of the can into a fullsize pilsner glass. For a lower-cost beer, it doesn't kill the taste - makes it very refreshing! - but you do need to watch out for the slush effect.
I put a 24-pack in my garage freezer, to keep it cold and so I can beer myself while working outside. I now know to pull a couple cans out of the freezer 15-30minutes before I'm going to drink one. :thumbup:
http://1.bp.blogspot.com/-21_jyYvyZxo/T16-fJ9X6oI/AAAAAAAADqI/HaJaKxYuxfg/s400/themoreyouknow.jpg