Knowles shared a video of her daughter and granddaughter to Instagram on Thursday.
"This has me in tears right now. To the fans that are there uplifting this beautiful talented 11 year old I thank you I appreciate you," Knowles wrote.
In the short clip, the "Brown Skin Girl" singer can be seen attempting to warm up her daughter, who wore a long black dress with bare shoulders and arms, braving the 30 degree temps in London.
"Are you cold?" Beyoncé asks her daughter in the video, prompting Blue Ivy to nod her head before throwing up a peace sign for pictures.
"Wait a minute," the singer says while stepping away from her eldest child. "She's cold."
"As someone who was just in London yesterday I feel for her!!!!!!!" wrote ET's Cassie DiLaura in the comments.
"Taking care of her baby!!!! People forget she is a mom and a human first!" a fan wrote under Knowles' post.
As fans know, Blue Ivy -- the eldest of JAY-Z and Beyoncé's three kids -- joined her mom onstage for numerous shows during the tour, dancing during the songs "My Power" and "Black Parade."
In the new film, the mom and singer says that while she had no doubt her daughter could do it, she initially turned down Blue Ivy's requests to take the stage.
"She told me she was ready to perform, and I told her no," Beyoncé says in the film, according to The New York Times. The mother and daughter eventually negotiated a one-off appearance, but that changed after Blue's first performance.
Beyoncé went on to say that she was horrified when her daughter read social media comments criticizing her as she was still getting the hang of her choreography, but it only fueled the fire already lit under the pre-teen. Instead of quitting, Blue was determined to keep training for future stops.
Renaissance: A Film By Beyoncé hits theaters nationwide on Dec. 1.