[Xx_Pixie_Dust_xX]

Best I Ever Had - State of Shock
1259 Lullaby - Bedouin Soundclash
When You're Gone, Too Much to Ask and Keep Holding On - Avril Lavigne
When I'm With You - Faber Drive
Whatever It Takes - Lifehouse

I don't know what it is, the lyrics or the tune maybe? But these songs make me hold back tears almost every time.