Last night, Justin Bieber announced that he's been battling Lyme disease. Following the singer's reveal, celebrities and fans alike have taken to social media to share their support.

In his announcement post, Bieber told of how he's been attacked for his looks over the past few years. "While a lot of people kept saying Justin Bieber looks like shit, on meth, etc., they failed to realize I've been recently diagnosed with Lyme disease," he wrote. "It's been a rough couple years but I'm getting the right treatment that will help treat this so far incurable disease, and I will be back and better than ever NO CAP."

Soon after the announcement, many took to Twitter to share their regret for making fun of him in the past. Read some of Twitter's reactions to Bieber's Lyme disease news below.

Hailey Bieber & Avril Lavigne shared messages of support

Some fans are feeling bad for all the Bieber jokes

Others are calling out Justin's stans for making fun of Selena Gomez's lupus