Ariana Grande is bow-utiful as she heads into the Nokia Theater to watch Katy Perry in concert in Los Angeles on Sunday night (August 7).

The 18-year-old actress tweeted her excitement before and after the concert.

“Katy sounds amazing! This is my favorite concert ever. I love her. She’s such a great actress 2! I love that she has so much personality.. ♥” Ariana started off. “Just met @KatyPerry! She told me that I look like the little mermaid & she was so sweet! This was definitely my favorite concert ever. ♥”