Ariana Grande performs during the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Ethan Miller/Getty Images )

Hands down, the OG Arianator is Ariana Grande’s mom, Joan. That’s clear from this adorable video of Joan dancing at Grande’s London concert over the weekend. Even Ariana could barely handle the clip.

“JOAN IS SO CUTE ARE YOU KIDDING ME,” one fan tweeted about a clip of Grande’s mom dancing along to “Into You” at the O2 Arena.

Joan is totally into it, singing along and even giving a dap to those fans who caught her having the time of her life. And Grande was very into her mom’s adorable moves. “Mama !!!!!!!!!!,” Grande tweeted with 10 exclamation points. “how how how is someone this cute ?”

That’s a very tough question. But another question might be, why weren’t Joan and Harry Styles dancing together at Grande’s show? Styles, who wrote Grande’s 2014 song “Just A Little Bit Of Your Heart,” was also spotted showing off his moves at her London stop on the Sweetener World Tour.

Fans found his moves to “Dangerous Woman” pretty cute, too. So cute, in fact, some were left in tears. Luckily, they did have a few tears left to cry for Styles.