"What I Don't Know 'bout You" is the first single from the album #4 Record by Australian rock band You Am I. It was released in 1998 and reached number 28 on the Australian ARIA singles chart; the band's highest-charting single.

Rogers said the song, "was my favourite song that I'd written at that point. I loved the lyrics in particular, but it just wasn't recorded in the way I thought it should."

"You Want It So Bad" is a You Am I original which later appeared on the …Saturday Night, 'Round Ten bonus disc 'Ignorance and Vodka'.

The live performances of "Cathy's Clown" and "The Applecross Wing Commander" were recorded at the 1997 Reading Festival in the UK.

The film clip for 'What I Don't Know 'bout You' was a tribute to the seminal 70s Australian movie, Don's Party. It features the band and several well-known young Australia actors (including Ben Mendelsohn, Matt Day, Stephen Curry, Tania Lacy and Nadine Garner reenacting scenes from the movie, along with the characters interacting with the band playing in a garden.

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