Rihanna's sign language interpreter stole the show at Super Bowl LVII. Here's everything you need to know about Justina Miles.

• American sign language (ASL) interpreter Justina Miles was the surprise star of Super Bowl LVII.
• Miles earned plenty of praise for her signing of Rihanna's halftime show.

American sign language (ASL) interpreter Justina Miles was the surprise star of Super Bowl LVII on Sunday night.

Miles performed twice during the event, first signing Sheryl Lee Ralph's pre-show rendition of "Lift Every Voice and Sing."

She then signed Rihanna's spectacular halftime show, in turn becoming the first deaf woman to provide ASL interpretation in Super Bowl halftime show history.

Miles earned plenty of praise online for her energetic signing of Rihanna's performance, which included renditions of "Umbrella," "Diamonds," and "Work."

"Enjoying watching the woman doing the sign language for Rihanna at the #SuperBowl halftime show having the time of her life," wrote British broadcaster Dan Walker on Twitter.

"Shoutout to ASL interpreter Justina Miles for absolutely going off for Rihanna's #SuperBowl performance," wrote the nonprofit platform Off Colour.

Communications executive Johanna Fuentes said: "Loving the spark and energy of Justina Miles, the ASL performer for the #SuperBowl. Just fantastic!"

So who is Justina Miles?

According to CNBC, Miles, 20, is a hard-of-hearing American sign language performer.

She first rose to notoriety in 2020 after a video of her signing a verse of rapper Lil' Kim's 1997 hit "Crush on You" went viral on Twitter.

The video, which was shared by Twitter user ToyaRochelle, has been watched over 1.1 million times.

"I really was trying to go viral on TikTok but somebody retweeted it," Miles told Billy Penn at the time. "All my friends were like, 'You're on my timeline. I was like, what's a timeline?"

It isn't just signing for which Miles has talent, though.

She was also part of the USA team that went to the 2021-22 Deaflympics in Brazil, where she won a silver medal as part of the 4x100 women's track relay team, according to CNBC.

She's also a current nursing student at HBCU Bowie State University.

Prior to performing at Super Bowl LVII, Miles told CNBC that she hopes her performance will inspire others to "not to let any obstacles prevent you from achieving your dreams, and to always believe in yourself to go beyond."

"It's an important moment not only for me to share this experience with the whole world," she said, "But to really bring that empowerment to millions and millions of Black deaf people all over the country who've never really seen that before. I feel that is truly lifting every voice, even my voice."