Unless you watch NCIS: New Orleans regularly, you may have missed the time Colorado's Nathaniel Rateliff & the Night Sweats were written into the show.

During the 100th episode, which aired on CBS in October of 2018, Nathaniel Rateliff & the Night Sweats performed their song 'Hey Mama' in a crowded bar (even though in real life he sells out multiple Red Rocks shows).

You can see a clip from the episode below via NCIS: New Orleans on YouTube.