Mariah Carey is the undisputed Queen of Christmas.
It just isn't the festive season until those first few bars of All I Want For Christmas Is You, is it?
So when she posted an adorable video of her twins Moroccan and Monroe singing along to the classic hit together in her car, our hearts melted.
She captioned it, ''Roc & Roe have been practicing the background vocals to All I Want For Christmas Is You, we're gonna take this one step at a time - we're very excited about it! It's our first video doing this! It's festive, c'mon!!''
Roc & Roe have been practicing the background vocals to All I Want For Christmas Is You, we're gonna take this one step at a time - we're very excited about it! It's our first video doing this! It's festive, Cmon!! pic.twitter.com/ddlzCtwT3d— Mariah Carey (@MariahCarey) November 28, 2018
However, while the 48-year-old received lots of lovely comments, many were quick to spot that something was amiss in the clip.
Her fans pointed out that the seven-year-olds were not wearing their seatbelts as they drove along in the car - and now the singer has come under fire for it.
Twitter exploded with many disappointed comments, complaining that neither the kids nor Mariah were buckled up as they drove along.
One wrote, ''Seat belts nowhere near to be found.''
While another said, ''Love it! But why is no one wearing seatbelts? '' followed by a crying emoji.
Have a look below at some of the other responses - Mariah has yet to address the backlash herself.
All I want for Christmas is those children in seat belts. I said it.— Latinarants (@latinarants) November 29, 2018
So much love but y’all need those seatbelts!— Beth Zbornak (@BZbornak) November 29, 2018
Why are they not wearing their seatbelts? ( I love you, btw).— the lotos eater (@sabathenomad) November 29, 2018
Seatbelts please wear seatbelts.— Pamm Peterson (@pammpeterson) November 29, 2018
Was anybody else like "I love you Mariah but where are their seatbelts?!"— Tarah Crottie (@feministbzzkill) November 29, 2018