The perfect soundtrack can really make a video come together, so YouTube is making it much easier to pick an audio backdrop for your footage.
YouTube launched an audio library on Wednesday, featuring more than 150 royalty-free instrumental tracks to choose from. The video manager feature allows you to peruse options based on mood, genre (from rock to classical), instrument and duration. Users can download the tracks as 320 kbps MP3 files and add them to videos.
See also: 20 Funniest YouTube Videos According to Reddit
Anyone who downloads the tracks can use them for creative purposes — they're not just for videos uploaded to YouTube.

"We searched far and wide for musicians to create tracks for us and ended up finding co-conspirators in multiple places: an acquaintance down in L.A., music houses across the country and a well-known music producer in Brooklyn," YouTube wrote on its official blog. "And it turns out the latter produced albums for Phish and Sean Lennon."
For a full look at the audio library, click here.
What tools do you use when making YouTube videos? Let us know in the comments.
Image: Flickr, jm3
Now going on 50 million views, this wedding video went about as viral as it possibly could. What made it such a hit? The unorthodox fun of dancing down the aisle to a great pop song -- and the sheer joy of the occasion shining through. It has even spawned parodies, resurrected a career and was paid homage on The Office.
It looks as if the entire wedding party practiced pretty hard for this Gorillaz number. Bonus points for the inclusion of some sweet robot moves.
This couple keeps it tight with their chosen medley of songs, all “crazy” themed, as they crank out some superb steps on their special day.
Each member of the wedding party gets their own entrance theme as they make their way down the dry ice-filled aisle. We wouldn't attempt to elbow in on the dance floor at this reception. Music Playlist: Michael Jackson Thriller! Jon Bon Jovi Dead or Alive -Aaron's (Grooms) part Deee-Lite Groove is in the Heart -AJ's dance White Zombie - Super Charger -John's dance Jamie Foxx Feat. T-Pain & Busta Rhymes & Lil'Wyane - Blame It (Remix) - Gary's Dance Flo-Rida Feat. T-Pain - Low -Summer's Dance Justin Timberlake Sexy Back -Kelly's Dance Vangelis Chariots of Fire -Khara & Amy Madonna Like A Virgin -Jo's Dance part 1 Madonna Papa Dont Preach -Jo's Dance part 1 Britney Spears - Circus -Christy's Dance Right Said Fred Too Sexy -Brooke's dance Lady Ga Ga Just Dance -Demia's dance Madonna Material Girl -Karmen's dance Tag Team - Whoomp , there it is -Heide's dance Shania Twain Feel Like A Woman -Peter's dance part 1 Jay-Z - Public Service Annoucement (Kiss) -Peter's dance part 2 Darude - Sandstorm -Collin's dance (ring bearer) Michael Jackson - Pretty Young Thing - -Taylor's dance (flower girl) Chaka Kahn - Ain't Nobody -Teri's (brides) entrance Fergie - Clumsy -bride trips over dancer Christina Aguilera - Car Wash -last song
Nobody puts Baby in the corner at this celebration. This British couple painstakingly recreate the famous Swayze/Grey dance from the finale of Dirty Dancing, including (unlike some other DD wedding sequences) the bride's dress, which is tailor-made to look like the one from the movie.
A YouTube classic, this couple's hip hop interlude (which starts with the wonderful line "I like big butts and I cannot lie") and wacky dance routine is juxtaposed quite spectacularly to the romantic slow dance it interrupts.
A surprise to the wedding guests, this couple executes a fantastic routine, and they appear to have lots of fun doing it -- which makes all the difference.
Monika & Nicholas were married 5/31/08 and put together this amazing dance which was a surprise to all their guests!
As Jack Johnson's mellow tones fade out, this funky couple hit it with a bit of MJ, much the obvious delight of the crowd. Some nifty moves from both the bride and groom have helped this clip surpass 12 million views.
Norm and Renee's Wedding First Dance: This is how we kicked off the reception. No one really knew what we were about to do after a couple of minutes into the Jack Johnson song. We thought is was something original and we choreographed it ourselves.
This wedding dance is bonkers — a full-on girls versus boys dance-off. We have to say we think the boys might be victorious here, but everyone’s a winner when you’re having that much fun.
Technically, this isn’t a wedding dance as it’s a 10th anniversary celebration, hence the bonus status. Be sure to keep watching until the kids join in, at which point it goes from good to great.