24/05/2013 09:27 BST | Updated 24/05/2013 09:32 BST

Taylor Swift Hints At Feud With Justin Bieber During Interview (VIDEO)

Taylor Swift has hinted at a rift with Justin Bieber, after she was filmed sticking her tongue out at him at the Billboard Music Awards.

Her pal Selena Gomez kissed ex Bieber backstage and Swift was having none of it.

Earlier in the night, Gomez and Swift sat together in the front row and watched while Bieber got booed accepting the Milestone Award.

"You do not want to open that can of worms," Swift reportedly said when asked what she and Selena were gossiping about at the time he picked up his award.

WATCH the video above to hear more and re-live that tongue moment below.

Photo gallery Billboard Awards 2013 See Gallery