Sorry to ruin your Friday everyone, but Justin Bieber is going through a tough time today as he mourns the death of his pet puppy Sammy.

Taking to Instagram to share the sad news, the Baby singer posted a cute throwback snap of him and his pooch, writing: "R.i.p Sammy you were the best puppy ever."

[related]His army of loyal Beliebers soon shared their support on the social networking site, with the hashtag #RIPSammy trending all morning.

One fan wrote: "Rest peacefully baby boy :( actually so upset about this huge loss #RIPSammy love you"

Another added: "He literally grew up with Justin. This is so sad. #RIPSammy."

In other Bieber news, the star recently hinted at new music being on theway as he looks forward to a 'great next chapter'.

If you need a shoulder to cry on Justin, you know where we are.