David Archuleta

Before 'American Idol' and all this stuff, I was obsessed with music charts, and I used to go online to find out what was popular in other countries. I'd log on to the BBC website, and that's how I found out about artists like Natasha Bedingfield, Daniel Bedingfield and Take That.

I don't think songs have to be like these super-#1-smash-hit-sounding songs, because I think it's more important that it's like, 'Hey! This is coming out of me. This is something I connect with. This is something that I like to sing.'

It's so important for girls to respect themselves and not put themselves down and say, 'Oh, my life is horrible,' and 'I'm not pretty enough.' How do you know? There's this energy people give off that people can be drawn to.

The importance of heart health became very real for me when my father died of heart disease seven years ago. Having experienced the loss first hand, I am inspired to do everything I can to break the cycle and prevent families from losing loved ones to this preventable disease.