We at Loudwire would like to wish a very Happy Birthday to James Hetfield today (Aug. 3). The Metallica frontman has spent a total of 49 years on this Earth, with 31 of them having been a member of Metallica.

Some of Metallica's achievements include nine Grammy Awards, becoming the first band to ever have five consecutive albums debut at No. 1 on the Billboard Charts, releasing the best-selling album in the history of the SoundScan era (The Black Album) and selling more than 100 million albums worldwide -- nearly 53 million of which have been sold in the United States.

Metallica have released nine full-length albums (not including 'Lulu'), four live records, 25 music videos and a grand total of 46 singles. With such a wealth of material, it's incredibly difficult to choose a favorite Metallica song, which is why we're challenging fans to do just that!

To celebrate James Hetfield's birthday, we want to know which of the following classic Metallica tracks is your all-time favorite. In our poll, each Metallica album is represented by some of its most legendary tracks. Now choose!