"These Are The Days" - Natalie Merchant
"Our Lives" - The Calling
"100 Years" - Five for Fighting
"Oh How The Years Go By" - Vanessa Williams
"There You'll Be" - Shania Twain
"Do I Make You Proud" - Taylor Hicks
"These Are The Moments" - Edwin McCain
"Time of Your Life" - Green Day
"Life is a Highway" - Rascal Flats
"Photographs" - Nickleback
::
ther notables:::
"Real World" - Matchbox 20
"I'm Still Here" - Johnny Rzeznik
"I've Had the Time of My Life" - Dirty Dancing Soundtrack
"Stuck in the Middle With You" - Steelers Wheel
:::current music:::
If you want to use new music, as in music that came out the past few months, I recommend..
"Chances" - Five For Fighting
"Someday" - Rob Thomas
The music depends on the message, tone and theme. I'll post my graduation video as an example.