Working on a graduation video for my son and was wondering if anyone could suggest any good songs to use. The lines are open...:)

Royalty-free ones.

Is it going online? Or just to show at his grad party? Big difference.

Online, royalty free. If you don't want to pay to license something, YouTube even has music you can insert into the background of videos, or search for songs in the public domain.

For at your own house...
it depends what kind of music he likes. Top 40? maybe "Best Day of My Life" by American Authors.

SmartSound Classical Suite #2, Audio Palette Volume 52 has Pomp and Circumstance as one of the selections on the disc.

You can probably still find it somewhere on their website. I got it back around 2009.
Royalty Free Music, 20 Million+ Royalty Free Music Downloads (http://www.smartsound.com)

it's just to show at his grad party we are having for him. mainly family.

I would ask your son what are his favorite songs.
Look at his ipod/iphone and see what songs he plays most often.

Upbeat?! "Timber" by Pitbull & Kei$ha I suppose. .

"Fancy" by Iggy Azalea