Phil Collins
Despite shows being sold out, Phil Collins has been forced to cancel concerts in London following a nasty fall which left him with a head injury. Here, he is pictured performing at the opening ceremonies of the U.S. Open in Queens, New York on Aug. 29, 2016. Mike Stobe/Getty Images for USTA

He has been working on a big comeback tour after taking nearly a decade off from touring and live performances, but singer Phil Collins has been forced to postpone his sold-out shows at the Royal Albert Hall in London, after he reportedly suffered a bad fall in his hotel room which saw him rushed to a hospital.

Collins, 66, reportedly missed a step and fell on his way to the bathroom of his room due to a condition known as “drop foot,” which he has following an emergency back surgery he received back in 2015, The Telegraph reports.

“Phil suffers from ‘drop foot’ as a result of a back operation which makes it difficult to walk,” his rep told the publication. “He rose in the middle of the night to go to the toilet and slipped in his hotel room, hitting his head in the fall on a chair. He was taken to a hospital where he had stitches for a severe gash on his head close to his eye and is recovering well. He will be kept under observation for 24 hours.”

Read: Lily Collins Sends Her Father Phil A Sweet Happy Birthday Message

Collins, who has made a name for himself as both a solo artist and as the lead singer of the band Genesis, is best known for some of his hit songs, which include “You'll Be In My Heart,” from the Disney movie “Tarzan,” and “Against All Odds (Take A Look At Me Now).”

The shows in London were among ones that stunned fans last fall, after Collins announced he would be coming out of retirement to tour again. Excitement over his return led to tickets for the performances selling out from Ticketmaster in just 15 seconds, though several tickets were later resold on other websites for as high as $2,800. (‎£ 2,200). The tickets has originally been priced between $71-$226 (‎£55-‎£175) plus a booking fee.

Collins’ rep said the singer was sending his “sincere apologies and thanks to fans” in light of his cancelled shows. No information about rescheduled dates or refunds has been immediately made available.

It is unclear if Collins’ actress daughter, Lily Collins, is with him. The two have had a relationship over the years that has been somewhat strained, with Lily admitting in an open letter to her father earlier this year in her book of personal essays, “Unfiltered: No Shame, No Regrets, Just Me,” that there were times he wasn’t there for her, but she was forgiving him and moving forward.

Read: Lily Collins Opens Up About “Deep Insecurities” With Her Father Phil Collins

“I forgive you for not always being there when I needed and for not being the dad I expected,” she said. “I forgive the mistakes you made. And although it may seem like it’s too late, it’s not. There’s still so much time to move forward.”

In the book, she also discussed how her insecurities over her father, and his split from his third wife, Orianne Cevey, in 2008, contributed to her struggles with both anorexia and bulimia, saying that “Many of my deepest insecurities stem from these issues with my dad.”