From Elena discovering the Salvatore secret, to Vicki transitioning into a vampire, "Lost Girls" was the most significant episode of this CW hit to date.

You can share your opinion on it in our Vampire Diaries forum.

You can also relive the incredible hour of television via the songs heard during it. As usual, we've updated our Vampire Diaries music section with the latest singles played this week.

Just click on the iTunes links below for a chance to purchase these songs. It's as easy as sucking the blood from the corpse of a dead television reporter...

• Green Day - "21 Guns"
• Anberlin - "Enjoy the Silence"
• The Temper Trap - "Fader"
• A Fine Frenzy - "Stood Up"
• Editors - "Weight of the World"

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.