What would you do?

I graduate college in just over a month. I have been planning a party, inviting family and friends. This day is going to be filled with mixed emotions, I am so happy I am finally getting my degree, surrounded by my husband, my best friend, and hopefully my brother ( depends on if my sister in law is having the baby). At the beginning of the party I want to play a song in memory of mom and dad. I just don't know which song to play. I know this is a person choice, but I am in desperate need of ideas. Before each of them passed away, I promised them each I would finish college and get my degree. They both even went so far as to tell me, when I am graduating, they are going to be there with me watching me walk across the stage. So if anyone sees a woman look toward the ceiling you can bet, that is me looking toward mom and dad. I wouldn't be where I am today if it wouldn't be for their help also. I really miss them so much. I am sitting here with tears in my eyes just thinking about it. I want the song to be a country song, I know there was one that came out in I think 2004 about rain being angels crying, but I can't remember the rest, or if I would even want that song. Please what in your opinion would be a good song to play in memory of the best mother and father I could ask for?