Justin Bieber tweets pic of his bum, Selena Gomez sings Cry me a River

Coincidental Justin Bieber and Selena Gomez news, while she was off performing the ultimate 'in your face' gig, where was Biebs? Oh tweeting a pic of his bum, as you do.

Selena sung Justin Timberlake in New York. Copyright: [YouTube]

Now, as we said these may be entirely mutually exclusive events, however it is our duty to report to you both.

Taking to the stage in New York, Selena burst into the Justin Timberlake song saying in her introduction how she could 'relate'.

Related Article: [Selena Gomez talks about fresh starts]

Related Article: [Selena Gomez and Justin Bieber have split]

*raises eyebrow*

"I’ve been through a lot the past few months. It’s been weird and sad and cool. This song definitely speaks to me," Selena said to the crowd.

Apologies to those who are eating. Copyright: [Instagram]

Meanwhile, a typically mature Biebs has been busy also, finding the time to Instagram his bum.

We wonder if this is the modern day, celeb equivalent of the photocopier at the Christmas party?

However, Justin quickly realised his error and deleted the snap...

Alas, with Bieber having about 43985349 followers it had already notched up a silly 86,000 likes.

Gutted.

Selena and Justin broke up shortly after holidaying in Mexico where they had planned to celebrate New Year together.

The pair reportedly got into a huge argument on December 30 after Selena allegedly found text messages from other girls on his phone.

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