Britney Spears turned 30 last week, so it seemed like a good time to ask our readers about your favorite songs by the pop icon. Your picks aren't exactly surprising – aside from skipping over her most recent singles, your favorites are, for the most part, her biggest chart hits. Click through to see your selections and watch videos of the winning songs, but be warned – to listen to several Britney tunes in a row is to hear a young woman begging you over and over and over to accept that she is an adult who needs privacy, space and sexual freedom. The music may be upbeat, but the themes are surprisingly heavy.

By Matthew Perpetua