Remembrance Sunday is an important day in the British calendar where the nation pauses to pay tribute to soldiers who have been killed or injured in conflict.

What is considered to be a sombre and emotional day quickly led to anger on Twitter after viewers spied singers Rod Stewart and Pixie Lott giggling during hymns at a remembrance services.

The pair were attended the service at the Albert Hall in London when the camera cut to Pixie appearing to laugh with Rod.

One viewer vented on Twitter: "Now Pixie Lott isn't singing the hymn. Why are you there? Clearly not an ounce of respect. Disgusting #FestivalofRemembrance (sic)"

Pixie later took to Twitter herself to pay tribute, writing: "Remember those who fought for us including my family members. Loved meeting those who still are today and their families @PoppyLegion (sic)"

But she then also added that she had ‘so much fun’ performing at the service.

Pixie wrote: "#lestweforget so much fun performing at the Festival of Remembrance! Amazing to hang with @rodstewart x (sic)"

Referring to viewer backlash, a spokesperson for Pixie told the Mirror: "Pixie was incredibly honoured to be asked to perform at The Festival Of Remembrance.

"Pixie is hugely supportive of The British Armed Forces and The Royal British Legion, and has the utmost respect for them. Pixie is involved with The Royal British Legion in various ways every year as it means so much to her and her family."

What do you think of this story? Let us know on Facebook and Twitter (@CloserOnline)