Sophia Grace and Rosie

The cousins made their first appearance on The Ellen DeGeneres Show in 2011, after a video of them rapping to Nicki Minaj went viral. At the time, Sophia was eight years old and Rosie was five.

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Now that the girls have gotten older (Sophia is 13 and Rosie is 10), they don't hang out together as much as they used to. While Rosie seems to be enjoying the life of a regular kid, Sophia is pursuing a career in music and just released a music video.

Alex From Target

An employee from a Texas Target became an overnight Internet sensation after a photo of the hunky teen went viral. He appeared on Ellen in 2014 and admitted he was very shocked by his instant popularity.

Now at 19-years-old, Alex still has his good looks, but no longer the infamous job at Target. His Instagram page jokes that he "was once a cashier," and now it seems as though he's taken up modeling.

Heaven King

The adorable little girl was just three years old when she first came on The Ellen DeGeneres Show in 2013. She and her mom Tianne went viral after dancing together to Beyoncé's "End of Time."

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The six-year-old still dances with her mom, and they even have a YouTube series together called Raising Heaven.

Kai Langer

When he was just four years old, Kai went on The Ellen DeGeneres Show and quickly became one of the most memorable guest stars with his performance of "Grenade" by Bruno Mars in 2013.

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Now, Kai is eight years old and loves playing soccer with his dad.

Brielle Milla

In 2015, three-year-old Brielle wowed the audience at the The Ellen DeGeneres Show with her ability to recite the entire periodic table.

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Brielle still makes appearances on Ellen and is already five-years-old!

Elias Phoenix

The piano prodigy first came on Ellen's show in 2014 when he was just seven years old, and has since become one of her most memorable guests. (We're not sure she's ever received so many hugs from one person on camera before.)

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Elias is nine years old now and is still playing the piano better than anyone else his age.

Zony And Yony

The Taiwanese twins went viral after a video of them dancing to k-pop hit the internet in 2014. They made their first appearance on The Ellen DeGeneres Show shortly afterwards when they were just six years old.

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The eight-year-olds are still dancing, and have performed on Ellen's show a few more times since their original appearance.