After Pink came under fire from fans who were upset that she canceled a show in England due to illness and then wasn't able to reschedule it, she posted a long note on her website calling out the haters for hassling her and telling them to kiss her butt.   Now, she's also got Kelly Clarkson firmly in her corner, defending her on Twitter.

Reacting to fans complaining about Pink scrapping the show in Birmingham, England last month on doctor's orders, Kelly tweeted to Pink sarcastically, "how dare you only work 364 days this year. I can't believe you got sick. That never happens to anyone ....ever. You're so lazy."

Kelly then added a super-long hashtag about Pink which read, "Name one person that has her schedule, sings while flying and is a mom."

The star then continued, "Seriously people. Tired of seeing everyone giving her crap. We're all human. Relax.”

Kelly is a huge fan of Pink's.  In fact, when she complimented Kelly earlier this year on her Grammy speech, Kelly tweeted to her, "this just made my night! I love you!"