Festivalen ble arrangert fra 13 Mar til 22 Mar 2009 (9 dag(er)).
South By Southwest (SXSW) finner sted i Austin, United States. Her er den fullstendige adressen til festivalen: Austin Convention Center, Austin, TX, US 78701
Metallica, Bring Me the Horizon, A Day to Remember, Katy Perry, Dance Gavin Dance, Third Eye Blind, Steel Panther, Cage the Elephant, Kanye West, Erykah Badu, Frank Turner, The Devil Wears Prada, The Avett Brothers, Mumford & Sons, Manchester Orchestra, The Used, The Maine, Zoé, Enter Shikari, Echo & The Bunnymen.
De mest populære sjangrene og undersjangrene i den siste utgaven var:
rock
punk
pop
alternative
indie
indie rock
alternative rock
experimental
post-hardcore
emo
indie pop
punk rock
hardcore
lo-fi
pop punk
garage rock
screamo
metal
noise rock