"I really hope that I did the character and the show proud," the country singer tells PEOPLE of guest starring in the new ABC medical drama Kelsea Ballerini was in good hands as she made her acting debut on Doctor Odyssey.

The cast is led by Joshua Jackson as Max, a charming new on-board doctor for a luxury cruise ship whose team navigates various medical crises on the high seas — and has fun when the emergencies aren’t happening. Don Johnson and Philippa Soo also star in the series.

Kelsea Ballerini was seen at the premiere of "Doctor Odyssey" wearing a scale-print dress along with a goldfish purse.