When he was 15 years old he sang all the songs on the soundtrack of the movie "Your Cheatin' Heart" a film biography of his father Hank Williams Sr.
June Carter Cash was his godmother.
His Monday Night Football theme "Are You Ready For Some Football?" is actually a revision of his earlier hit "All My Rowdy Friends are Coming Over Tonight".
His Monday Night Football theme song ("Are You Ready for Some Football?") earned him Emmy awards for best TV show theme every year from 1990 through 1993.
He won a Grammy award in 1989 for the song "There's a Tear in My Beer" which was recorded in the form of a duet with his father, using a recording of Hank Sr. from an old record.
Hank and Johnny Cash performed in Detroit's Cobo Hall in 1969 for what was then the largest country music show ever.
His father gave him the nickname "Bocephus" because he thought young hanks body reminded him of a ventriloquist's dummy called Bocephus.
Hank Jr. is an avid Pittsburgh Steelers fan.
Pro Wrestler James Gibson and Ultimate Fighting Champion Matt Hughes both use Hank's song "A Country Boy Can Survive" as they enter the ring.
On 14 Oct 2005, Hank donated $125,000 to the hurricane relief effort in Biloxi, Mississippi.
He nearly died from a mountain climbing accident on August 8, 1975 in Montana. All of his facial bones were shattered and his brain was exposed.
He learned to play piano from Jerry Lee Lewis.
At the 2006 CMT Music awards, her was given the Johnny Cash Visionary Award.
In 1970 he signed the largest recording contract in MGM Records history.
His first hit record was a rendition of his late father's song "Long Gone Lonesome Blues."
He made his debut performance at the Grand Ole Opry when he was eleven years old.