Music : Justin Bieber: 'Conflict is part of relationships'

Justin Bieber insisted "conflict is part of a relationship" as he posted a series of angry messages on Father's Day.

The 31-year-old singer lashed out at an unidentified friend as he shared a heated text message exchange on social media on Sunday evening.

"I will never suppress my emotions for someone," the pop star wrote, according to the screenshots posted on Instagram.

"Conflict is part of relationship. If you don't like my anger you don't like me."

He also shared a message declaring the friendship was "officially over" after the unnamed pal accused him of "lashing out".

Justin then insisted he had plenty of other good friends who would "respect" his boundaries and asked the mystery person to leave him alone.

The Canadian star remained active on social media throughout Father's Day and posted a series of photos of his feet and tattoos, along with shots of his young son Jack and his wife Hailey Bieber sitting at a piano.

"I'm a dad that's not to be f**ked with," he wrote in a post to accompany one selfie, which was liked by Hailey.

Hailey also posted on her Instagram account on Sunday, but failed to pay tribute to Justin with a Father's Day message.

However, it did appear the 28-year-old model had treated him to a gift to mark the special day.

Justin shared a series of photos of him posing with a gold and diamond watch and another of him showing off two Prada bags.

"Happy daddy day to me u lil h*," he wrote in one message which has since been deleted.