Katy Perry open to collab with Taylor Swift on one condition

@HerWonkEye @katycatsophia @camilasviews if she says sorry, sure!

— KATY PERRY (@katyperry) September 10, 2016

Band-aids may not fix bullet holes, but for pop star Katy Perry, a simple apology is all it takes for bad blood to be water under the bridge.

Perry nonchalantly answered a fan on Twitter asking her if a collaboration with Taylor Swift is possible.

"If she says sorry, sure!" Perry quipped and the remark quickly received over 10,000 retweets.

Swift and Perry feud was confirmed in 2014, when Swift confirmed that she's "straight up enemies" with another female artist because of an alleged arena tour sabotage. — AT, GMA News