Slideshow song ideas?

I'm making a video for my little bro's high school graduation party, and I need some ideas for songs. Here's what I have so far:

Forever Young (Bob Dylan)- Baby pictures

http://www.youtube.com/watch?v=9sldgunY3Fw

You Make Me Feel So Young (Frank Sinatra)- Toddler/preschool age

http://www.youtube.com/watch?v=_-IFOJYzt_s

Scooby Doo theme song (unusual choice I know, but Scooby was his absolute favorite TV show when he was little.)- Early school years

http://www.youtube.com/watch?v=FysobubtDcI

Some random song that he likes now (I'll have to raid his iTunes)- recent/friend pics

Two of Us (Beatles)- him and me

http://www.youtube.com/watch?v=IFAAiSyxP-o

I need another song for his early childhood and one for preteen/early teen years. I thought about Godspeed (Dixie Chicks) somewhere toward the beginning, but Dylan is already sorta country/blues, and that one's staying for sure. Plus, I don't really even like the Dixie Chicks (and neither does my brother), it's just a cute song. Maybe something a little more upbeat?

Ideas?