
Image source: Facebook video

A video of a big sister and little brother duet is going viral, being called by some a "mind-blowing rendition" of David Guetta and Sia's song "Titanium."
Leah Kirwan from Ireland posted the video of her and Noah, who has Down syndrome, singing the song on Facebook Saturday, where it has since garnered more than 632,000 views as of the time of this posting.

"Thought I'd do a duet with my favourite little man singing his favourite song, Titanium," Kirwin wrote.
Watch the duet:
Thought I'd do a duet with my favourite little man singing his favourite song, Titanium Enjoy!
Posted by Leah Kirwan on Saturday, August 29, 2015
Kirwin did not immediately respond to TheBlaze's request for comment on the success of the video.