Justin Bieber performs with Jaden Smith on November 13, 2015 in Los Angeles, California. (Jason Merritt/Getty Images for Universal Music)

Justin Bieber has been flirting with Jaden Smith on Instagram—and has even claimed that the US actor and singer is his boyfriend.

Bieber commented on a recent Instagram post by Smith, which was captioned, “pan my vocals,” and featured him singing into a microphone.

“Thought I was your boyfriend,” Bieber wrote.

Smith, son of Jada Pinkett Smith and Will Smith, later responded: “You know that you are.”

Justin Bieber tells Jaden Smith: “I thought I was your boyfriend”

Fans responded with glee—and heartbreak—to Bieber’s post.

One said: “@justinbieber no you’re my boyfriend 💔.”

A second wrote: “Clearly the best couple.”

And one person wrote: “@justinbieber knew you was bisexual.”

Jaden Smith and Justin Bieber flirt on Instagram. (c.syresmith/justinbieber)

A fourth person even accused Bieber of being unfaithful to his wife Hailey Baldwin.

They wrote: “so you are cheating on hailey..?”

Jaden Smith says Justin Bieber “knows” he is his boyfriend

It comes after Smith recently referred to rapper Tyler, The Creator as his “boyfriend.”

The 20-year-old Karate Kid star made the comments on November 12 while appearing on stage at Flog Gnaw Carnival music festival in Los Angeles, which is run by Tyler, The Creator.

Smith told the crowd: “I wanna tell you…Tyler doesn’t want to say, but Tyler’s my motherf***ing boyfriend and he’s been my motherf***ing boyfriend my whole f***ing life!”

He added: “Tyler, The Creator is my motherf***ing boyfriend! It’s true!

“Tyler, The Creator is my f***ing boyfriend, if you take anything away from this f***ing show, that’s what you take away!”

After the concert, Jaden Smith posted on Twitter: “Yup @tylerthecreator I Told Everyone You Can’t Deny It Now.”

Tyler, The Creator responded: “hahaha you a crazy n***a man.”

The announcement was celebrated by some Jaden Smith fans on Twitter, while others wondered whether he was being completely serious about the romance with Tyler, 27.

One Twitter post reads: “Jaden Smith just came out of the closet and omggdhbsfhsnnal.”

But another insisted: “I don’t think Jaden Smith & Tyler The Creator are actually dating. You can tell by his laugh while saying it & Tyler’s reaction that it was just a joke.”

One user claimed: “Naw… i think he just used the worng word, he ment to say best friend but he said boy friend because tyler is a boy and he is also a friend.”

Out Down Under is growing daily with over 50,000 followers spread out across our social media and is the leading Australian LGBT News and Events pages. If you would like to advertise in these news stories or have banner ads on our home page then please send us a message via Facebook for our rates.

For more Out Down Under LGBT Australian News and Events please Like us on Facebook and Follow Us on Instagram