麻烦推荐一些有深度的英文歌或中文歌

我不知您是如何定义“有深度”的~但是就我自己的理解来看，我觉得一下这几位歌手的这些歌曲值得一听:
Celine Dion:<It's all coming back to me now><The power of love><My heart will go on>
Dido:<White flag><Life for rent>
Jessica Simpson:<When you told me you loved me><To fall in love again>
Dixie Chicks:<Not ready to make nice><traveling soldier><I believe in love>
Enya:<Only time><Amarantine><Sumiregusa><Anywhere is>
Faith Hill:<There you'll be>
James Blunt:<Same mistake><Carry you home><High><Wisemen><If I can't hear the music><Tears and rain>
Kelly Clarkson:<Because of you><Anytime>
Leona Lewis:<Bleedding love><Better in time>
Mariah Carey:<Hero>
Michael Jackson:<Heal the world>
S Club 7:<Never had a dream come true>
Sarah Brightman:<Scarborough fair><Time to say goodbye>
Sis