[Video game music to sing along (for UltraStar / karaoke)]

Hi,

I love OCRemix since I found it via Extra Remix.
And I also love sing-along games like UltraStar Play (a SingStar clone).

Now I wonder, which songs would make for a nice sing-along version?
Some ideas:

• Still alive (Portal)
• Setting Sail, Coming Home (Bastion)
  • This is one of my favorite duets! Also, each singer's part can be considered as stand alone song. They fit harmonically as solo and as duet.
• Ska Buffet (Kirby, OCRemix)
  • Super fun song :). Guess the lyrics are "OCRemix original"

Do you have more ideas? Most of VGM does not have lyrics. But some do and this is what I am looking for.

Having a collection of these songs could make for a fun video game music themed singing event with friends or at conventions