It looks like green hair and mechanical horses are the thing now 👀— Lady Gaga (@ladygaga) May 8, 2014
That is what Gaga tweeted the day after Katy's tour began.
Now, this video from Katy's tour has surfaced where it looks like Katy is spitting green slime. Seems likes a similar concept from Lady Gaga's SXSW controversial performance where she was vomiting on stage (I will spare you from having to watch that video = gross).
Look, I love both of these artists, but should Gaga really be calling anyone out? Gaga meet Madonna. Why do we have to fight... can't we all just get along?