Instead of waking up to the annoying alarm noise on your iPhone every morning, you can wake up to any song that's downloaded on your iPhone. The song must be in your built in music app though.
Here's a step by step tutorial on how to do this.
1. Open the clock app
2. Create a new alarm, then tap on Sound
3. Tap on Pick a song, then choose the song
Your iPhone may show your three favorite songs below this option. I don't use the built in music app so it shows no quick recommendations.
I used iOS 7 for the tutorial, but the instructions are exactly the same on previous versions of iOS. Please note that this feature requires iOS 6+
Now you will wake up to a more pleasant tune.