SACK is a five-piece Irish band based in Dublin, Ireland. To date the band has released three albums: You Are What You EatButterfly Effect and Adventura Majestica. SACK formed after the demise of LORD JOHN WHITE following the release of their only single Jungle Burger released on the band's own Lemonflower Records.

SACK's first single "What Did The Christians Ever Do For Us?" was awarded single of the week in both the NME and Melody Maker music newspapers. The band have supported Morrissey on two tours taking in mainland Europe, the UK and Ireland and the United States and have also opened for British Indie stalwarts, The Fall and The Wedding Present among others. Amid turbulent line up changes, they have gigged sporadically in recent years and as they have never officially split, plan to record new material in the future.

The band describe their sound as "Frank Sinatra fronting the Pixies".

SACK appeared on the Morrissey-endorsed NME CD Songs to Save Your Life, and he has famously quoted that "Laughter Lines", the single featured on the soundtrack to the movie Carrie 2: The Rage, is simply 'a song that should be number one forever'!