Miley Cyrus' 18th Birthday Party -- An Adult Affair [VIDEO] Miley's 18th Birthday Bash An Adult Affair 11/23/2010 5:30 AM PT
Today's Miley Cyrus' 18th birthday -- but she already got her adulthood on with an A-list only birthday party ... and some dude sucking on her neck. Yeah ... they grow up so fast.
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