Are You Sleeping? to Warren Beatty in 7 Steps

1. Are You Sleeping? was written by Harry Nilsson
2. Harry Nilsson sang River Deep-Mountain High
3. River Deep-Mountain High was written by Phil Spector
4. Phil Spector is name checked by Life is a Rock
5. Life is a Rock name checks Carly Simon
6. Carly Simon sang You're So Vain
7. You're So Vain might be about Warren Beatty

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