Cruise Ship Plays The Loudest Seven Nation Army You've Ever Heard

The 290m long MSC Magnifica isn't just a luxurious, $US550 million cruise ship. It's the world's first 4500-passenger musical instrument, and it rocked a slow, loooouuud rendition of The White Stripes' "Seven Nation Army" at this weekend's 825th Hamburg Port Anniversary in Germany. Talk about rocking the boat.

With 300 ships and over a million guests, the Hamburg Port Anniversary looks like a lot of seafaring fun, including two grand parades and a tugboat ballet. They have been throwing this party since the year 1189 -- they clearly have plenty of practice at gettin' down. And with the Magnifica on tunes, you know it was bumpin'. [YouTube]