"Four is no longer just a number to you." Nope! Every time I head "four" I'm like "Wait, what?! Number Four... John Smith... I Am Number Four!" I love the Lorien Legacies series! or Four...Tobias...from divergent?
I Am Number Four (Lorien Legacies Series #1) by Pittacus Lore. Nine came here. They look like us, talk like us, live among us. But they have powers far beyond ours. The three previous numbers have been caught and killed. I Am Number Four is the next. A fantasy series that tingles with suspense!
So many good suggestions (Hunger Games, the Selection Trilogy, and the Uglies series) and a few to add to my future reading list. Also, I would add the Matched/Crossed/ Reached series and the Cinder/Scarlet/Cress series.