TV Richie Sambora Tangos With John Stamos on 'Grandfathered' Set By Raphael Chestang 4:41 PM PDT, October 20, 2015 This video is unavailable because we were unable to load a message from our sponsors. If you are using ad-blocking software, please disable it and reload the page. 38:03Richie Sambora Guest Stars on 'Grandfathered'02:28John Stamos Joins the Beach Boys for Fundraiser Performance (Exc…04:39‘Friends: The Reunion’: Jennifer Aniston Reacts to Brad Pitt's 2…04:44‘The Conjuring’ Stars on the True Story Behind ‘The Devil Made M…06:35'In the Heights' Stars Leslie Grace and Melissa Barrera Freak Ou…02:11‘Family Matters’ Stars Telma Hopkins and Bryton James Talk Reuni…02:32Country Stars Give Fans Ultimate Summer of Dreams Concert (Exclu…01:50‘New Amsterdam' Stars Ryan Eggold and Jocko Sims Share Dream Sto…24:52Pride 2021: Billy Porter, Raven-Symoné, Elliot Page & More LGBTQ…06:36'iCarly' Stars Jerry Trainor and Nathan Kress Answer Your Bigges…09:57'The Bold Type' Stars Tease Season 5 and Which Storyline They Wo…04:14Serena Williams and More Stars Lend Support to Naomi Osaka Follo…05:06Elton John Calls Lil Nax X a 'Hero' of His and Praises Teen Star…07:41Gabby Barrett on Motherhood, Breakout Year and Taking Her Baby o…03:20Andy Cohen Grills the Kardashians on Their Love Lives and Scanda…02:26‘Raiders of the Lost Ark’ Turns 40: Karen Allen Reflects on Her …09:19'Loki' Creators on Time Travel and Mephisto Theories (Exclusive)14:41Naya Rivera’s Dad George Reflects on Her Legacy (Exclusive)04:01DaBaby Says He's 'Waiting on Drake' for a Collab (Exclusive)02:00Sean Murray on If He’ll Return for ‘Hocus Pocus’ Sequel Richie Sambora guest starred on the latest episode of Grandfathered, and ET was there to see just how far his bond with star John Stamos goes. "You're a rock god," Stamos told the former Bon Jovi guitarist. "Thank you. I wouldn't go that far," Sambora responded.WATCH: John Stamos Shares Sexy Underwear Pic on 52nd Birthday, Gets Surprise on 'Grandfathered' Set! In Sambora's episode of the Fox sitcom, Stamos misses his granddaughter's birthday party, but calls in a favor from Sambora to throw the ultimate birthday bash to make up for it.In real life the two have been pals for 20 years, and Sambora told us they always have fun together."I love music and he's our first big musical star so I'm so grateful for doing this," Stamos said.Even after all their years of knowing each other, Sambora is just as baffled as everyone else when it comes to Stamos' appearance.WATCH: John Stamos Is Out of Rehab and Looking Incredible"He just looks the same. He hasn't changed since I've known him," Sambora said. "I'm like, 'Did you find the Fountain of Youth or something, man?'" Grandfathered airs Tuesdays at 8 p.m. ET/PT on Fox.John Stamos Enters Rehab This video is unavailable because we were unable to load a message from our sponsors. If you are using ad-blocking software, please disable it and reload the page.