Katy Perry and Miley Cyrus had a little falling out after the "Roar" singer made comments about kissing Cyrus at a "Bangerz" concert in Las Vegas. During one of Cyrus' concerts, she spotted Perry sitting in the front row and called her towards the stage where she planted one on her.

"I went to her show, which was amazing. It is very colorful - I mean that in all ways. She has this one part where it's like a kiss cam. I just walked up to her to give her like a friendly girly kiss, you know, as girls do. Then she like tried to move her head and go deeper and I pulled away," she said when asked about the lip-locking.

"God knows where that tongue has been," she added. "We don't know. That tongue is so infamous!"

Perry ended by saying that she and Cyrus were good friends but obviously Cyrus was offended over the comment and lashed out on Twitter.

"Girl if ur worried abt where tongues have been good thing ur ex boo is ur EX BOO cause we ALL know where THAT [tongue] been," Cyrus tweeted including a screen grab of Perry's interview.

However it seems like the two are back on good terms now. Following the jab, Cyrus posted an illustration of the kiss with the caption: "Dontchyouuu act like you didn't lurvvvv it @katyperry," to which she responded "Ooo gurrrl I'm gonna give you the BIGGEST spanking when I see you in the UK bb!"

The "We Can't stop" singer smooched with another girl during a recent concert in Las Vegas. According to reports, she grabbed a female fan during a Mar. 3 Vegas show and kissed her. Cyrus' concerts have come under a lot of fire for being overly-sexual and often time raunchy.