Man, I've been off this board for a while! Sorry this response is so late!
Congratulations on your fifth anniversary!!
Some of these might not really fit... just a bunch of songs I came up with
1) We Are Family - Sister Sledge
2) You've Got a Friend - James Taylor
3) Midnight Train to Georgia - Gladys Knight and The Pips
4) Friends - Michael W. Smith
5) Girls Just Wanna Have Fun - Cyndi Lauper
6) Joy to the World - Three Dog Night
7) Celebrate - Three Dog Night
8) The Yellow Rose of Texas - Elvis Presley (yellow rose.. don't play the whole song)
9) Me and Julio Down by the Schoolyard - Simon and Garfunkel (heh.. it's almost 2:00 am here. But hey, it's got a great beat! And school.)
10) Do You Love Me (Now That I Can Dance) - The Contours (if you have dance pictures or something)
I'm starting to get off-track on these songs. Peace, and have fun!