Hodgins discovers he has yet another tattoo on his right biceps, this time of his father-in-law with the word "Daddy" across Gibbons' beard (at which point Gibbons told Hodgins that celebratory tequila and he do not seem to mix). In a later episode, he asks to babysit his grandson Michael, pointing out that Angela had spent many nights when she was a baby sleeping soundly backstage while he played to sold-out stadiums. After initial reluctance of Angela and Hodgins, they agree due to the need to get some sleep, as Michael will not stop crying and go to sleep. Gibbons solves the problem by discovering the music Michael likes, including blues and boogie rock, such as ZZ Top's "Hi Fi Mama". Gibbons voiced a character in episode 60 of Metalocalypse. Gibbons, along with his ZZ Top bandmates Dusty Hill and Frank Beard, voiced a fictionalized version of himself in Fox's animated show King of the Hill, which is set in the fictional town of Arlen, Texas. In the show, Dusty Hill is said to be a cousin of the show's main character, Hank Hill. Gibbons appeared as a dining room guest in the season-13 episode of Hell's Kitchen. Books Although first published in 2005, Billy F Gibbons: Rock + Roll Gearhead received an expanded re-release from Motorbooks in 2020 for the 50th anniversary of ZZ Top. Gibbons joined author Tom Vickers and photographer David Perry which offers a look at his collection of cars and guitars, including the famous Eliminator Ford 1933 coupe that appeared on the cover of ZZ Top's 1983 album of the same name. The book is ultimately divided into three sections: The Life, The Cars, and The Guitars. BFG Brand sauces In 2011, Gibbons joined with Texas-based Mojo Products, LLC, to launch a line of hot sauces, barbecue sauces, and other products with his own personal branding, "BFG Brand". The sauces were sold as BFG No. 44 via his personal website. In late 2012, Gibbons was featured in a series of television commercials for Fiesta Mart, a Texas supermarket chain. Some of the BFG Brand sauces were seen in these commercials. The Holy Grail In 2018, Billy Gibbons teamed up with John Fogerty; the two guitar players are planning a summer tour under "The Holy Grail" title. John Fogerty wrote a song with the title "The Holy Grail" which Gibbons has appeared on, adding his vocals