The music legend (amateur historian on the Alamo) held his last concert ever amid his ongoing health issues.
Collins played in London on Saturday with Genesis members Mike Rutherford and Tony Banks.
The sickly looking Collins performed the show sitting down.
“Collins has suffered from numerous health issues in recent years, including dislocating vertebrae in his neck in 2007 that left nerve damage to his hands. He has used a cane since 2015, when he had back surgery, and revealed in September he can "barely hold" a drumstick.
"I don’t do anything at all. I don’t practice singing at home, not at all. Rehearsing is the practice," Collins told the Guardian in September.
"These guys are always having a go at me for not, but I have to do it this way. Of course, my health does change things, doing the show seated changes things. But I actually found on my recent solo tours, it didn’t get in the way; the audience were still listening and responding. It’s not the way I would have written it, but it’s the way that it is," he continued.
Original Genesis member Peter Gabriel and guitarist Steve Hackett were reportedly not present for the band’s final concert."
Back in 2014, Collins donated the Alamo artifacts he acquired over the years to the historic site.