Complicated
Losing Grip
I'm With You
Tomorrow
Headset (B-Side)

Could of put any of her songs here considering she's been my favourite female artist since she debuted. It's tough to not choose Complicated and I'm With You, as not only were they the early memories of her as well as great songs, but also remind me of amazing times. I'd also say all of her B Side stuff is incredible, a must listen to if you haven't already (In particular Headset, Falling Into History, Falling Down, Tomorrow You Didn't etc etc etc).