Bizarre way Rihanna is seen holding her child sparks controversy

A video of Rihanna at her son's birthday party has gone viral.

The 'Disturbia' hitmaker is mom to two boys: RZA, who recently turned two, and nine-month-old Riot Rose.

To mark RZA's second birthday yesterday (May 13), his famous parents, Rihanna and A$AP Rocky, hosted a private party for him on Saturday at Color Factory in New York.

Party guest Jasmine B. Cook shared some photos of RZA's special day on Instagram - and it looked like a boat-load of fun.

The party, which appeared to be pink themed, had cut out photos of the youngster, as well as a host of adorable pillows of his face.

In one clip, Rihanna, A$AP, Riot Rose and RZA were posing for photos when the mom-of-two held her eldest son upside down by his ankles.

She then proceeded to swing him side to side while laughing.

RZA seemed to be having the time of his life, but since the video has since gone viral, some are questioning the way the singer was holding her two-year-old.

"That’s not the right way to hold a young child! But she did not hold him upside down for long so it couldn’t hurt him," one person wrote.

A$AP Rocky and Rihanna seen with their sons (itsjazzy.b/Instagram)

"If this was a normal person yall would of had an outrage," suggested another.

Another person joked: "Why is Rihanna trying to pull money out of a baby by hanging him upside down?!"

But the large majority of commenters saw the lighter side of things.

"They’re just playing , what’s the big fuss about," one person questioned.

A second added: "I know that baby was enjoying and was like 'Do it again mommy'. Kids love that typa sh*t [sic]."

Echoing similar sentiments, a different person wrote: "Maaan, everyone has done that to their kids. My pops ultimately did it to me."

"Rihanna looks like such a fun mom," another X user said.

A few people expressed concerns about the way she held her son. (itsjazzy.b/Instagram)

This isn't the only video of Rihanna that's been doing the rounds in recent weeks; back in March her fans were sent into a frenzy when a clip emerged of her dancing at the wedding of the son of the richest man in India.

The songstress had performed at the lavish affair earlier in the night, and later let her hair down with some of the party's guests.

It's reported Rihanna was paid a whopping $6 million for her set.