Bieber put out a call over the weekend on Twitter, asking fans to send in videos of themselves dancing with their moms, or simply being with them.
Many of those clips have now been edited into a new version of the original "Stuck with U" video.
"It’s out! Thanks for sending in all the #stuckwithumom videos. Thousands of you did. Really special. Made this for you guys and all the amazing moms and one special dad," Bieber wrote on Instagram.
Bieber and Grande, both 26, also included previously shot footage of themselves dancing with their own moms, Pattie Mallette and Joan Grande, respectively. There's also footage of Grande kissing her beloved grandma, affectionately known as "Nonna."
All net proceeds from the streams and sales of "Stuck with U" and its videos will be donated to First Responders Children’s Foundation to fund grants and scholarships for children of health care workers, emergency medical technicians, paramedics, police officers, firefighters and other front-line workers.