Stanley told fans about his injury via the following Facebook posts. He first wrote, "Surgery reattached it with a screw and stitches to anchor in place. Not much I can do now!"

A few hours later he gave fans an update: "Thanks to my AMAZING doctor I WILL be great & ready to rock WAAAAYYYY before the tour! CAN'T WAIT! #‎FreedomToRock‬"

As he mention, the band announce last week that they will be embarking on the Freedom to Rock tour of North America this summer. The trek will be kicking off on July 7 in Boise, Idaho at the Taco Bell Arena.

While the KISS frontman expects to be able to rock this summer, the band were forced to play as a trio at the Race to Erase MS benefit concert at the Beverly Hills Hilton on Friday night.

The band played four songs for their headline set, according to the Washington Post, via Ultimate Classic Rock, who are streaming embedded video of performances of "Cold Gin" and "Rock and Roll All Nite" here.

The event marked the second time that the legendary band has performed without Stanley. Back in 2007, the frontman was rushed to the hospital with a heart problem as the band prepared to take the stage at the Soboba Casino in San Jacinto, Ca.