A song for our baby

So Lee and I have both heard and read that if you sing your baby a song while in the womb, it will recognize that song and be soothed by it when it's born (how cute). The only problem is that I CANNOT come up with a song that I actually sound ok singing. See, I did NOT take after my dad in the good voice gene department so every song that I come up with and try to sing sounds like a dying cat. I need help! If anyone can come up with a song for Lee & I to sing to our new little bun, PLEASE give us your suggestions. You can leave a message here on the blog, send me a post or message through facebook, email me, or call. It needs to be somewhat baby appropriate, but not a kid song. If anyone is wondering, yes I have thought of a Bon Jovi song (I'll be there for you), but Lee and I sang it in the car on Saturday night and it was scary!! Needs to be something that won't make our baby cry when we sing - ha. Can't wait for some suggestions, thanks!