Meghan Trainor And Daryl Sabara Introduce Baby Barry To Riley!

Best friends in the making!

Meghan Trainor and Daryl Sabara's 2-year-old son Riley is now a big brother! And by the looks of the recent TikTok video the singer shared of the two boys meeting, he's really excited about his new title and welcoming his new bestie into the family.

In a recent video shared on TikTok, Trainor, 29, captured the moment Riley met his little brother and new best friend. Wearing a shirt that reads, "Big Brother," Riley was excited to see the baby his parents have been preparing him to meet for months.

One of the sweetest moments was captured when Riley rubs baby Barry's head in the gentlest way.

The video, shared only about half a day ago, has already been viewed more than 6.7 million times and has 1.2 million likes and thousands of comments.

"Riley is going to be a great big brother! Congratulations!!!" one person wrote in the comments.

Another fan added, "Congrats!!!❤️Omg Riley is so gentle and sweet with him.???"

One other follower added, "OMG I'm melting from the cuteness, no doubt he will be the best big bro.???"

The "Made You Look" singer also shared a video a few weeks ago at 37 weeks pregnant that shows Riley preparing for his exciting and important role as big brother.

The video shows him gently hugging and kissing a baby doll, kissing Trainor's baby bump and talking to the baby in his mama's belly.

Many of the singer's fans and followers left sweet comments about the adorable moments caught on camera.

"It’s the quick kisses on the belly that are just so cute," one person wrote. "He’s the most precious angel ?❤️," said another.

"He’s been waiting a long time to meet his little brother…AWE❤️be still my beating heart," another person left in the comments.

Trainor shared the exciting news that her second baby is here on Instagram with a carousel of photos captioned, "On July 1st (our 7 year anniversary of our first date) we welcomed Barry Bruce Trainor into the world ?? He was a big boy at 8lbs 7oz...and sideways (transverse), but we had an amazing, successful c-section, and I finally got my skin to skin time! Thank you to all of the incredible doctors and nurses who took such great care of us.❤️"

The comment section of the post quickly filled up with congratulatory messages and well wishes for the new family of four.

And now that Trainor's second baby has arrived, she's halfway to her goal of being a mama of four. Earlier this year, the singer told PEOPLE she ultimately wants four kids.

Congrats to the new family of 4!