WATCH: Miley Cyrus Disses #SelenaGomez On Stage During #BangerzTour

After her performance in Milan over the weekend, is looks like Miley Cyrus may have ignited a full-on celebrity feud. 

A few months ago, Selena Gomez and her crew were totally mad at Miley Cyrus for apparently cozying up to Justin Bieber. Now, the unpredictable Miley has exacted her revenge.

While performing a rendition of FU in Milan, Italy over the weekend, a concertgoer threw a poorly constructed cardboard cut-out of Selena on to the stage!! How did Miley react? She appears to throttle the doll then angrily hurls it into the crowd. Naughty, Naughty!

Apparently, fans were surprised by her reaction as there's never been talk of any bad blood between Miley and Selena. Check out the video: