Irish Brother And Sister Perform Heart-Melting Duet

A sister and brother from Ireland are making waves on the Internet after the former shared their heartwarming duet on Facebook.

Leah Kirwan performed David Guetta's powerful song "Titanium" along with Noah, who has Down syndrome. He chimed in several times throughout the tune with some encouragement from his older sister. And just wait for their adorable high-five at the end of the song.

Aside from how well the two siblings interact, it's also heartwarming to see how proud Leah is of Noah. The moment is just as touching as the time Madison Tevlin went viral for singing John Legend’s ballad, “All Of Me,” despite being told her chances of singing were slim.

The adorable video quickly went viral having been viewed over 400,000 times and shared by more than 8,000 people. Commenters also praised the duet, including one who said, "Brought a tear to my eye." Many also gave kudos to Leah just for posting this beautiful video on her page.

The singer often expresses the love she has for her brother on social media.

In 2014, for example, she shared a picture of the two along with the caption, "The love I have for this wee boy is insane."

Watch the video below and please SHARE if this sibling moment touched your heart!

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