Selena Gomez's announced on Dec 19, Thursday that she will be cancelling her much awaited Australian tour as she wants to spend some time on herself. Gomez said in a statement, "It has become clear to me and those close to me that after many years of putting my work first, I need to spend some time on myself in order to be the best person I can be."

Do you think Selena's abrupt cancellation of the tour is somewhere influenced by her ex-boyfriend Justin Bieber?

Take a look at three possible explanations why Justin Bieber may have influenced Selena's decision:

Justin Bieber recently confessed in an interview that he loves Selena till this day and when he was with her it was best time of his life. It could be that Justin's confession may have created an emotional upheaval in Selena's life. Since her break-up from Justin, the "Come And Get It" singer has been single and she has come upfront and denied all the rumors of dating anyone else. Does Selena's singlehood mean she still misses Bieber?

Another thing, which could influence Selena's decision, is Justin's song "All That Matters". After much media speculation that the song is written for Selena Gomez, Justin finally revealed to Power 108 FM that he has indeed written this song for her. May be after listening to the song, Selena Gomez needed some time to understand her feelings for Justin.

Justin recently blurted out unceremonious words about his love life at Chris D' Elia's show "The Laugh Factory. When Chris made fun of Justin by saying that he was only ""f***ing himself", Justin rudely said, " I f**k b*****s." It could be a possibility that Selena is hurt by his comments and needs some time off to retrospect.

Also Selena has taken this decision after Bieber's announcement of retiring from the music. So, is Justin playing tricks on Selena's mind?

Let us know what you think.