Rock school sweethearts.

School of Rock costars Caitlin Hale and Angelo Massagli have delighted fans with their romance years after appearing in the hit 2003 film starring Jack Black. And now, the real-life couple, who played private school peers Marta and Frankie in the film, might be engaged.

The pair, who began dating in 2016 after reconnecting at a cast reunion in 2015, shared a new professional photo shoot on Instagram, that led fans to speculate they’ve taken the next step in their relationship.  

The images feature Caitlin in a stunning black strapless gown with Angelo by her side in a black suit and white button-down shirt. Though the majority of the photos are snapped from farther away, one image features Caitlin sporting what appears to be a diamond ring on that finger.

The former child star simply captioned the pics, “Sneak peek.”

Their former rock teacher Jack, who played substitute Dewey Finn in the movie, liked the post.

E! News has reached out to reps for Angelo and Caitlin for comment on their potential engagement and has not heard back.