The first image showed the former costars and longtime friends posing — Coulier, 65, with his head shaved, and Stamos wearing a baldcap in solidarity. For the second swipe, Stamos laughed with Coulier while helping him to shave his head. The final photo showed Stamos and Melissa both kissing Coulier's bald head.

"Full House" stars and friends John Stamos and Dave Coulier 's bond is as strong as ever. This was made apparent after Coulier revealed on Wednesday he had been diagnosed with stage 3 non-Hodgkin lymphoma, reports People.

John Stamos publicly showed his support after Dave Coulier announced his stage 3 non-Hodgkin lymphoma diagnosis. “My brother from day 1,” Stamos, 61, wrote via Instagram on Wednesday, November 14, alongside photos of him and Coulier,